Vulnerabilities > CVE-2017-15589 - Information Exposure vulnerability in XEN 4.9.0
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to obtain sensitive information from the host OS (or an arbitrary guest OS) because intercepted I/O operations can cause a write of data from uninitialized hypervisor stack memory.
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Subverting Environment Variable Values The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
- Footprinting An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
- Exploiting Trust in Client (aka Make the Client Invisible) An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
- Browser Fingerprinting An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
- Session Credential Falsification through Prediction This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
Nessus
NASL family Misc. NASL id XEN_SERVER_XSA-237.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by multiple vulnerabilities related to the setup of PCI MSI interrupts, which may allow an attacker on the guest to cause a denial of service on the host, potentially disclose sensitive information from the host, or potentially gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103972 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103972 title Xen Hypervisor PCI MSI Interrupt Setup Multiple Guest-to-Host Privilege Escalation (XSA-237) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(103972); script_version("1.6"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-15596" ); script_bugtraq_id(101490, 101496, 101500); script_xref(name:"IAVB", value:"2017-B-0142"); script_name(english:"Xen Hypervisor PCI MSI Interrupt Setup Multiple Guest-to-Host Privilege Escalation (XSA-237)"); script_summary(english:"Checks 'xl info' output for the Xen hypervisor version."); script_set_attribute(attribute:"synopsis", value: "The remote Xen hypervisor installation is missing a security update."); script_set_attribute(attribute:"description", value: "According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by multiple vulnerabilities related to the setup of PCI MSI interrupts, which may allow an attacker on the guest to cause a denial of service on the host, potentially disclose sensitive information from the host, or potentially gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall."); script_set_attribute(attribute:"see_also", value:"http://xenbits.xen.org/xsa/advisory-237.html"); script_set_attribute(attribute:"see_also", value:"https://xenbits.xen.org/gitweb/?p=xen.git;a=summary"); script_set_attribute(attribute:"solution", value: "Apply the appropriate patch according to the vendor advisory."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-15595"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/12"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/19"); script_set_attribute(attribute:"potential_vulnerability", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:xen:xen"); script_set_attribute(attribute:"stig_severity", value:"I"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Misc."); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("xen_server_detect.nbin"); script_require_keys("installed_sw/Xen Hypervisor", "Settings/ParanoidReport"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("install_func.inc"); include("misc_func.inc"); app_name = "Xen Hypervisor"; install = get_single_install(app_name:app_name); if (report_paranoia < 2) audit(AUDIT_PARANOID); version = install['version']; display_version = install['display_version']; path = install['path']; managed_status = install['Managed status']; changeset = install['Changeset']; if (!empty_or_null(changeset)) display_version += " (changeset " + changeset + ")"; # Installations that are vendor-managed are handled by OS-specific local package checks if (managed_status == "managed") audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path); # XSA-237 fixes['4.5']['fixed_ver'] = '4.5.5'; fixes['4.5']['fixed_ver_display'] = '4.5.5 (changeset 7afc8ad)'; fixes['4.5']['affected_ver_regex'] = '^4\\.5\\.'; fixes['4.5']['affected_changesets'] = make_list("72c107b", "5659aa5", "a224de6", "6442fa9", "db487a6", "709230f", "83724d9", "04b8c4c", "0b2ceae", "e3f0768", "d5a5231", "c5b0fe5", "136ff4e", "42c8ba5", "d38489d", "df59014", "3217129", "4964e86", "c079597", "6ec173b", "a373456", "0780e81", "e5ef76d", "25eaa86", "ae02360", "5597df9", "c5de05e", "773094e", "e39a248", "7b3712a", "be35327", "8825df1", "d7e3725", "6eb61e4", "b1fcfed", "5779d6a", "afdd77e", "c18367a", "7b7fd80", "b30e165", "62ef9b2", "8071724", "235b5d5", "a28b99d", "ff294fc", "bc01e2d", "da50922", "386cc94", "139960f", "ec3ddd6", "988929a", "1c48dff", "20d4248", "9610422", "cd76cd3", "455fd66", "b820c31", "ac3d8bc", "cde86fc", "1678521", "83cb2db", "43d06ef", "2b17bf4", "1a2bda5", "0bd7faf", "e3426e2", "37281bc", "27be856", "bdf3ef1", "cc325c0", "8e7b84d", "387b8ae", "34fbae7", "1530da2", "274a1f6", "b679cfa", "877b760", "cfe165d", "84e4e56", "e4ae4b0"); fixes['4.6']['fixed_ver'] = '4.6.6'; fixes['4.6']['fixed_ver_display'] = '4.6.6 (changeset 9bac910)'; fixes['4.6']['affected_ver_regex'] = '^4\\.6\\.'; fixes['4.6']['affected_changesets'] = make_list("c7a43e3", "913d4f8", "c5881c5", "b0239cd", "78fd0c3", "9079e0d", "1658a87", "22b6dfa", "a8cd231", "629eddd", "64c03bb", "b4660b4", "1ac8162", "747df3c", "5ae011e", "f974d32", "3300ad3", "d708b69"); fixes['4.7']['fixed_ver'] = '4.7.4'; fixes['4.7']['fixed_ver_display'] = '4.7.4-pre (changeset e3f7a64)'; fixes['4.7']['affected_ver_regex'] = '^4\\.7\\.'; fixes['4.7']['affected_changesets'] = make_list("957ad23", "b1ae705", "3add76f", "314a8fc", "d6aad63", "7c99633", "145c18d", "c3fa5cd", "487f8f9", "ffcfc40", "c7783d9", "3331050", "83966a3", "a67b223", "68dbba2", "2728470", "dea68ed", "9d12253", "73d7bc5", "b704b1a", "ca4ef7b", "ece330a", "3d63ebc", "30d50f8", "2dc3cdb", "5151257", "c9f3ca0", "e873251", "8aebf85", "c362cde", "fece08a"); fixes['4.8']['fixed_ver'] = '4.8.3'; fixes['4.8']['fixed_ver_display'] = '4.8.3-pre (changeset 1960ca8)'; fixes['4.8']['affected_ver_regex'] = '^4\\.8\\.'; fixes['4.8']['affected_changesets'] = make_list("866cfa1", "ddd6e41", "370cc9a", "39e3024", "9f092f5", "667f70e", "2116fec", "1a535c3", "ee3fc24", "d623d82", "dda458c", "c642b12", "80d7ef3", "ff4f60a", "36898eb", "4d7ccae", "e574046", "90dafa4", "c020cf2"); fixes['4.9']['fixed_ver'] = '4.9.1'; fixes['4.9']['fixed_ver_display'] = '4.9.1-pre (changeset 44ceb19)'; fixes['4.9']['affected_ver_regex'] = '^4\\.9\\.'; fixes['4.9']['affected_changesets'] = make_list("ae45442", "784afd9", "22032b2", "58da67f", "d1b64cc", "9cde7a8", "1cdcb36", "84c039e", "b244ac9", "612044a", "e8fd372", "a568e25", "8fef83e", "478e40c", "22ea731", "e7703a2", "91ded3b", "2cc3d32", "79775f5", "43cb0c4", "4821228", "d23bcc5", "308654c", "6fd84b3", "89b36cc", "a9ecd60", "798f6c9", "6508278", "5587d9a", "527fc5c", "5ff1de3", "692ed82", "9bf14bb", "c57b1f9", "6b147fd", "0e186e3", "afc5ebf", "266fc0e", "4698106", "f4f02f1", "0fada05", "ab4eb6c", "b29ecc7", "a11d14b", "107401e", "1b7834a"); fix = NULL; foreach ver_branch (keys(fixes)) { if (version =~ fixes[ver_branch]['affected_ver_regex']) { ret = ver_compare(ver:version, fix:fixes[ver_branch]['fixed_ver']); if (ret < 0) fix = fixes[ver_branch]['fixed_ver_display']; else if (ret == 0) { if (empty_or_null(changeset)) fix = fixes[ver_branch]['fixed_ver_display']; else foreach affected_changeset (fixes[ver_branch]['affected_changesets']) if (changeset == affected_changeset) fix = fixes[ver_branch]['fixed_ver_display']; } } } if (empty_or_null(fix)) audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path); items = make_array("Installed version", display_version, "Fixed version", fix, "Path", path); order = make_list("Path", "Installed version", "Fixed version"); report = report_items_str(report_items:items, ordered_fields:order) + '\n'; security_report_v4(port:0, extra:report, severity:SECURITY_HOLE);
NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-1239.NASL description This update for xen fixes several issues : These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-05 modified 2017-11-02 plugin id 104349 published 2017-11-02 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104349 title openSUSE Security Update : xen (openSUSE-2017-1239) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2017-1239. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(104349); script_version("3.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-5526"); script_name(english:"openSUSE Security Update : xen (openSUSE-2017-1239)"); script_summary(english:"Check for the openSUSE-2017-1239 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update for xen fixes several issues : These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word's worth of data were not properly handled, which allowed a malicious unprivileged x86 HVM guest to obtain sensitive information from the host or other guests (XSA-239 bsc#1061080) - CVE-2017-15595: In certain configurations of linear page tables a stack overflow might have occured that allowed a malicious or buggy PV guest to cause DoS and potentially privilege escalation and information leaks (XSA-240 bsc#1061081) - CVE-2017-15588: Under certain conditions x86 PV guests could have caused the hypervisor to miss a necessary TLB flush for a page. This allowed a malicious x86 PV guest to access all of system memory, allowing for privilege escalation, DoS, and information leaks (XSA-241 bsc#1061082) - CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts that allowed a malicious or buggy guest to cause DoS and potentially privilege escalation and information leaks (XSA-237 bsc#1061076) This non-security issue was fixed : - bsc#1057358: Fixed boot when secure boot is enabled This update was imported from the SUSE:SLE-12-SP2:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1027519" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1057358" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1059777" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061076" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061077" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061080" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061081" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061082" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061084" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061086" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1061087" ); script_set_attribute(attribute:"solution", value:"Update the affected xen packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-html"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU-debuginfo"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/02"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.2", reference:"xen-debugsource-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"xen-devel-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"xen-libs-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"xen-libs-debuginfo-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"xen-tools-domU-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"xen-tools-domU-debuginfo-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-doc-html-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-libs-32bit-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-tools-4.7.3_06-11.18.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-tools-debuginfo-4.7.3_06-11.18.1") ) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen-debugsource / xen-devel / xen-libs-32bit / xen-libs / etc"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2017-5BCDDC1984.NASL description xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing [XSA-240] Stale TLB entry due to page type release race [XSA-241] page type reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244] ---- ARM: Some memory not scrubbed at boot [XSA-245] Qemu: vga: reachable assert failure during during display update [CVE-2017-13673] (#1486591) Qemu: vga: OOB read access during display update [CVE-2017-13672] (#1486562) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2017-11-01 plugin id 104310 published 2017-11-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104310 title Fedora 26 : xen (2017-5bcddc1984) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2017-5bcddc1984. # include("compat.inc"); if (description) { script_id(104310); script_version("3.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-13672", "CVE-2017-13673", "CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595"); script_xref(name:"FEDORA", value:"2017-5bcddc1984"); script_name(english:"Fedora 26 : xen (2017-5bcddc1984)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing [XSA-240] Stale TLB entry due to page type release race [XSA-241] page type reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244] ---- ARM: Some memory not scrubbed at boot [XSA-245] Qemu: vga: reachable assert failure during during display update [CVE-2017-13673] (#1486591) Qemu: vga: OOB read access during display update [CVE-2017-13672] (#1486562) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2017-5bcddc1984" ); script_set_attribute(attribute:"solution", value:"Update the affected xen package."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:26"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/29"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/01"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^26([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 26", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC26", reference:"xen-4.8.2-4.fc26")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen"); }
NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0166.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: xen commit=6c164f71ed0dc46201f1d69de65d05d138556fcc - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba - BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e - BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee - x86/cpu: fix IST handling during PCPU bringup (Andrew Cooper) [Orabug: 26901427] (CVE-2017-15594) - x86/shadow: Don last seen 2020-06-01 modified 2020-06-02 plugin id 104249 published 2017-10-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104249 title OracleVM 3.4 : xen (OVMSA-2017-0166) code # # (C) Tenable Network Security, Inc. # # The package checks in this plugin were extracted from OracleVM # Security Advisory OVMSA-2017-0166. # include("compat.inc"); if (description) { script_id(104249); script_version("3.7"); script_cvs_date("Date: 2019/09/27 13:00:35"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-15597"); script_name(english:"OracleVM 3.4 : xen (OVMSA-2017-0166)"); script_summary(english:"Checks the RPM output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote OracleVM host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: xen commit=6c164f71ed0dc46201f1d69de65d05d138556fcc - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba - BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e - BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee - x86/cpu: fix IST handling during PCPU bringup (Andrew Cooper) [Orabug: 26901427] (CVE-2017-15594) - x86/shadow: Don't create self-linear shadow mappings for 4-level translated guests (Andrew Cooper) [Orabug: 26901416] (CVE-2017-15592) - x86: Disable the use of auto-translated PV guests (Andrew Cooper) [Orabug: 26901416] (CVE-2017-15592) - x86: don't allow page_unlock to drop the last type reference (Jan Beulich) [Orabug: 26901404] (CVE-2017-15593) - x86: don't store possibly stale TLB flush time stamp (Jan Beulich) [Orabug: 26901395] (CVE-2017-15588) - x86/mm: Disable PV linear pagetables by default (George Dunlap) [Orabug: 26901366] (CVE-2017-15595) - x86: limit linear page table use to a single level (Jan Beulich) [Orabug: 26901366] (CVE-2017-15595) - x86/HVM: prefill partially used variable on emulation paths (Jan Beulich) [Orabug: 26901350] (CVE-2017-15589) - x86/FLASK: fix unmap-domain-IRQ XSM hook (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86/IRQ: conditionally preserve irq <-> pirq mapping on map error paths (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86/MSI: disallow redundant enabling (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86: enforce proper privilege when (un)mapping pIRQ-s (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86: don't allow MSI pIRQ mapping on unowned device (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - gnttab: fix pin count / page reference race (Jan Beulich) [Orabug: 26901282] (CVE-2017-15597)" ); # https://oss.oracle.com/pipermail/oraclevm-errata/2017-October/000797.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?1553e768" ); script_set_attribute( attribute:"solution", value:"Update the affected xen / xen-tools packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools"); script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/18"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/30"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"OracleVM Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/OracleVM/release"); if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM"); if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release); if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); flag = 0; if (rpm_exists(rpm:"xen-4.4.4-105", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-4.4.4-105.0.25.el6")) flag++; if (rpm_exists(rpm:"xen-tools-4.4.4-105", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-tools-4.4.4-105.0.25.el6")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-tools"); }
NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2815-1.NASL description This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-01 modified 2020-06-02 plugin id 104099 published 2017-10-23 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104099 title SUSE SLES11 Security Update : xen (SUSE-SU-2017:2815-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2017:2815-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(104099); script_version("3.8"); script_cvs_date("Date: 2019/09/11 11:22:16"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-5526"); script_name(english:"SUSE SLES11 Security Update : xen (SUSE-SU-2017:2815-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word's worth of data were not properly handled, which allowed a malicious unprivileged x86 HVM guest to obtain sensitive information from the host or other guests (XSA-239 bsc#1061080) - CVE-2017-15595: In certain configurations of linear page tables a stack overflow might have occured that allowed a malicious or buggy PV guest to cause DoS and potentially privilege escalation and information leaks (XSA-240 bsc#1061081) - CVE-2017-15588: Under certain conditions x86 PV guests could have caused the hypervisor to miss a necessary TLB flush for a page. This allowed a malicious x86 PV guest to access all of system memory, allowing for privilege escalation, DoS, and information leaks (XSA-241 bsc#1061082) - CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts that allowed a malicious or buggy guest to cause DoS and potentially privilege escalation and information leaks (XSA-237 bsc#1061076) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1027519" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1059777" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061076" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061080" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061081" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061082" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061084" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061086" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061087" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15588/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15589/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15590/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15592/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15593/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15594/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15595/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-5526/" ); # https://www.suse.com/support/update/announcement/2017/suse-su-20172815-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?bdd1ba92" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Software Development Kit 11-SP4:zypper in -t patch sdksp4-xen-13321=1 SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-xen-13321=1 SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-xen-13321=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-pae"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/15"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/20"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/23"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); if (cpu >!< "i386|i486|i586|i686|x86_64") audit(AUDIT_ARCH_NOT, "i386 / i486 / i586 / i686 / x86_64", cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-kmp-default-4.4.4_24_3.0.101_108.10-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-libs-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-doc-html-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-tools-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-kmp-pae-4.4.4_24_3.0.101_108.10-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-kmp-default-4.4.4_24_3.0.101_108.10-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-libs-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-tools-domU-4.4.4_24-61.12.1")) flag++; if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-kmp-pae-4.4.4_24_3.0.101_108.10-61.12.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen"); }
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201801-14.NASL description The remote host is affected by the vulnerability described in GLSA-201801-14 (Xen: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details. Impact : A local attacker could potentially execute arbitrary code with the privileges of the Xen (QEMU) process on the host, gain privileges on the host system, or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 106038 published 2018-01-15 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106038 title GLSA-201801-14 : Xen: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 201801-14. # # The advisory text is Copyright (C) 2001-2018 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(106038); script_version("1.3"); script_cvs_date("Date: 2019/04/05 23:25:06"); script_cve_id("CVE-2017-12134", "CVE-2017-12135", "CVE-2017-12136", "CVE-2017-12137", "CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-17044", "CVE-2017-17045", "CVE-2017-17046", "CVE-2017-17563", "CVE-2017-17564", "CVE-2017-17565", "CVE-2017-17566"); script_xref(name:"GLSA", value:"201801-14"); script_name(english:"GLSA-201801-14 : Xen: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-201801-14 (Xen: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details. Impact : A local attacker could potentially execute arbitrary code with the privileges of the Xen (QEMU) process on the host, gain privileges on the host system, or cause a Denial of Service condition. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/201801-14" ); script_set_attribute( attribute:"solution", value: "All Xen users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/xen-4.9.1-r1' All Xen tools users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/xen-tools-4.9.1-r1'" ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen-tools"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"patch_publication_date", value:"2018/01/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/15"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"app-emulation/xen", unaffected:make_list("ge 4.9.1-r1"), vulnerable:make_list("lt 4.9.1-r1"))) flag++; if (qpkg_check(package:"app-emulation/xen-tools", unaffected:make_list("ge 4.9.1-r1"), vulnerable:make_list("lt 4.9.1-r1"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Xen"); }
NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2856-1.NASL description This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-01 modified 2020-06-02 plugin id 104209 published 2017-10-27 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104209 title SUSE SLES12 Security Update : xen (SUSE-SU-2017:2856-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2017:2856-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(104209); script_version("3.8"); script_cvs_date("Date: 2019/09/11 11:22:16"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-5526"); script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2017:2856-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word's worth of data were not properly handled, which allowed a malicious unprivileged x86 HVM guest to obtain sensitive information from the host or other guests (XSA-239 bsc#1061080) - CVE-2017-15595: In certain configurations of linear page tables a stack overflow might have occured that allowed a malicious or buggy PV guest to cause DoS and potentially privilege escalation and information leaks (XSA-240 bsc#1061081) - CVE-2017-15588: Under certain conditions x86 PV guests could have caused the hypervisor to miss a necessary TLB flush for a page. This allowed a malicious x86 PV guest to access all of system memory, allowing for privilege escalation, DoS, and information leaks (XSA-241 bsc#1061082) - CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts that allowed a malicious or buggy guest to cause DoS and potentially privilege escalation and information leaks (XSA-237 bsc#1061076) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1027519" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1059777" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061076" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061080" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061081" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061082" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061084" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061086" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061087" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15588/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15589/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15590/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15592/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15593/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15594/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15595/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-5526/" ); # https://www.suse.com/support/update/announcement/2017/suse-su-20172856-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?89752c15" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2017-1778=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/15"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/26"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/27"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-doc-html-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-kmp-default-4.4.4_24_k3.12.61_52.92-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-kmp-default-debuginfo-4.4.4_24_k3.12.61_52.92-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-libs-32bit-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-libs-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-tools-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-4.4.4_24-22.54.1")) flag++; if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.4.4_24-22.54.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2017-C432DB2971.NASL description xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing [XSA-240] Stale TLB entry due to page type release race [XSA-241] page type reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244] Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-01-15 plugin id 105971 published 2018-01-15 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105971 title Fedora 27 : xen (2017-c432db2971) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2017-c432db2971. # include("compat.inc"); if (description) { script_id(105971); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595"); script_xref(name:"FEDORA", value:"2017-c432db2971"); script_name(english:"Fedora 27 : xen (2017-c432db2971)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing [XSA-240] Stale TLB entry due to page type release race [XSA-241] page type reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244] Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2017-c432db2971" ); script_set_attribute(attribute:"solution", value:"Update the affected xen package."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:27"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/18"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/11"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/15"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^27([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 27", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC27", reference:"xen-4.9.0-12.fc27")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen"); }
NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2873-1.NASL description This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-01 modified 2020-06-02 plugin id 104255 published 2017-10-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104255 title SUSE SLES12 Security Update : xen (SUSE-SU-2017:2873-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2017:2873-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(104255); script_version("3.7"); script_cvs_date("Date: 2019/09/11 11:22:16"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-5526"); script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2017:2873-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word's worth of data were not properly handled, which allowed a malicious unprivileged x86 HVM guest to obtain sensitive information from the host or other guests (XSA-239 bsc#1061080) - CVE-2017-15595: In certain configurations of linear page tables a stack overflow might have occured that allowed a malicious or buggy PV guest to cause DoS and potentially privilege escalation and information leaks (XSA-240 bsc#1061081) - CVE-2017-15588: Under certain conditions x86 PV guests could have caused the hypervisor to miss a necessary TLB flush for a page. This allowed a malicious x86 PV guest to access all of system memory, allowing for privilege escalation, DoS, and information leaks (XSA-241 bsc#1061082) - CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts that allowed a malicious or buggy guest to cause DoS and potentially privilege escalation and information leaks (XSA-237 bsc#1061076) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1059777" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061076" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061077" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061080" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061081" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061082" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061084" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061086" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1061087" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15588/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15589/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15590/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15591/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15592/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15593/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15594/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-15595/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-5526/" ); # https://www.suse.com/support/update/announcement/2017/suse-su-20172873-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?03397077" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE OpenStack Cloud 6:zypper in -t patch SUSE-OpenStack-Cloud-6-2017-1795=1 SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1795=1 SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1795=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/15"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/30"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-debugsource-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-doc-html-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-4.5.5_18_k3.12.74_60.64.60-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-debuginfo-4.5.5_18_k3.12.74_60.64.60-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-32bit-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-debuginfo-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-4.5.5_18-22.31.1")) flag++; if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.5.5_18-22.31.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen"); }
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1181.NASL description Multiple vulnerabilities have been discovered in the Xen hypervisor : CVE-2017-15588 Jann Horn discovered a race condition that can cause a stale TLB entry which might result in privilege escalation, denial of service or information leak. CVE-2017-15589 Roger Pau Monné discovered a hypervisor stack leak in the x86 I/O intercept code, resulting in information leaks. CVE-2017-15592 Andrew Cooper discovered that incorrect handling of self-linear shadow mappings for translated guests might result in denial of service or privilege escalation. CVE-2017-15593 Jan Beulich discovered that page type reference counts are mishandled which may result in denial of service. CVE-2017-15595 Jann Horn discovered that crafted page-table stacking might result in denial of service, privilege escalation or information leaks. For Debian 7 last seen 2020-03-17 modified 2017-11-21 plugin id 104708 published 2017-11-21 reporter This script is Copyright (C) 2017-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/104708 title Debian DLA-1181-1 : xen security update code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DLA-1181-1. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(104708); script_version("3.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15595"); script_name(english:"Debian DLA-1181-1 : xen security update"); script_summary(english:"Checks dpkg output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security update." ); script_set_attribute( attribute:"description", value: "Multiple vulnerabilities have been discovered in the Xen hypervisor : CVE-2017-15588 Jann Horn discovered a race condition that can cause a stale TLB entry which might result in privilege escalation, denial of service or information leak. CVE-2017-15589 Roger Pau Monné discovered a hypervisor stack leak in the x86 I/O intercept code, resulting in information leaks. CVE-2017-15592 Andrew Cooper discovered that incorrect handling of self-linear shadow mappings for translated guests might result in denial of service or privilege escalation. CVE-2017-15593 Jan Beulich discovered that page type reference counts are mishandled which may result in denial of service. CVE-2017-15595 Jann Horn discovered that crafted page-table stacking might result in denial of service, privilege escalation or information leaks. For Debian 7 'Wheezy', these problems have been fixed in version 4.1.6.lts1-10. We recommend that you upgrade your xen packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/wheezy/xen" ); script_set_attribute(attribute:"solution", value:"Upgrade the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxen-4.1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxen-dev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxen-ocaml"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxen-ocaml-dev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxenstore3.0"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-docs-4.1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-hypervisor-4.1-amd64"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-hypervisor-4.1-i386"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-system-amd64"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-system-i386"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-utils-4.1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-utils-common"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xenstore-utils"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/20"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/21"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"7.0", prefix:"libxen-4.1", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"libxen-dev", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"libxen-ocaml", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"libxen-ocaml-dev", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"libxenstore3.0", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-docs-4.1", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-hypervisor-4.1-amd64", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-hypervisor-4.1-i386", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-system-amd64", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-system-i386", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-utils-4.1", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xen-utils-common", reference:"4.1.6.lts1-10")) flag++; if (deb_check(release:"7.0", prefix:"xenstore-utils", reference:"4.1.6.lts1-10")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Misc. NASL id XEN_SERVER_XSA-241.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a race condition that is triggered when handling TLB flush requests. This allows an attacker on the guest to access all system memory, allowing them to cause a denial of service, disclose sensitive information, or gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103976 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103976 title Xen Hypervisor TLB Flush Request Handling Race Condition System Memory Access Guest-to-Host Privilege Escalation (XSA-241) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(103976); script_version("1.6"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-15588", "CVE-2017-15589", "CVE-2017-15590", "CVE-2017-15591", "CVE-2017-15592", "CVE-2017-15593", "CVE-2017-15594", "CVE-2017-15595", "CVE-2017-15596" ); script_bugtraq_id(101490, 101496, 101500); script_xref(name:"IAVB", value:"2017-B-0142"); script_name(english:"Xen Hypervisor TLB Flush Request Handling Race Condition System Memory Access Guest-to-Host Privilege Escalation (XSA-241)"); script_summary(english:"Checks 'xl info' output for the Xen hypervisor version."); script_set_attribute(attribute:"synopsis", value: "The remote Xen hypervisor installation is missing a security update."); script_set_attribute(attribute:"description", value: "According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a race condition that is triggered when handling TLB flush requests. This allows an attacker on the guest to access all system memory, allowing them to cause a denial of service, disclose sensitive information, or gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall."); script_set_attribute(attribute:"see_also", value:"http://xenbits.xen.org/xsa/advisory-241.html"); script_set_attribute(attribute:"see_also", value:"https://xenbits.xen.org/gitweb/?p=xen.git;a=summary"); script_set_attribute(attribute:"solution", value: "Apply the appropriate patch according to the vendor advisory."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-15595"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/12"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/19"); script_set_attribute(attribute:"potential_vulnerability", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:xen:xen"); script_set_attribute(attribute:"stig_severity", value:"I"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Misc."); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("xen_server_detect.nbin"); script_require_keys("installed_sw/Xen Hypervisor", "Settings/ParanoidReport"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("install_func.inc"); include("misc_func.inc"); app_name = "Xen Hypervisor"; install = get_single_install(app_name:app_name); if (report_paranoia < 2) audit(AUDIT_PARANOID); version = install['version']; display_version = install['display_version']; path = install['path']; managed_status = install['Managed status']; changeset = install['Changeset']; if (!empty_or_null(changeset)) display_version += " (changeset " + changeset + ")"; # Installations that are vendor-managed are handled by OS-specific local package checks if (managed_status == "managed") audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path); # XSA-241 fixes['4.5']['fixed_ver'] = '4.5.5'; fixes['4.5']['fixed_ver_display'] = '4.5.5 (changeset da4f24d)'; fixes['4.5']['affected_ver_regex'] = '^4\\.5\\.'; fixes['4.5']['affected_changesets'] = make_list("b7582ac", "196371c", "7afc8ad", "72c107b", "5659aa5", "a224de6", "6442fa9", "db487a6", "709230f", "83724d9", "04b8c4c", "0b2ceae", "e3f0768", "d5a5231", "c5b0fe5", "136ff4e", "42c8ba5", "d38489d", "df59014", "3217129", "4964e86", "c079597", "6ec173b", "a373456", "0780e81", "e5ef76d", "25eaa86", "ae02360", "5597df9", "c5de05e", "773094e", "e39a248", "7b3712a", "be35327", "8825df1", "d7e3725", "6eb61e4", "b1fcfed", "5779d6a", "afdd77e", "c18367a", "7b7fd80", "b30e165", "62ef9b2", "8071724", "235b5d5", "a28b99d", "ff294fc", "bc01e2d", "da50922", "386cc94", "139960f", "ec3ddd6", "988929a", "1c48dff", "20d4248", "9610422", "cd76cd3", "455fd66", "b820c31", "ac3d8bc", "cde86fc", "1678521", "83cb2db", "43d06ef", "2b17bf4", "1a2bda5", "0bd7faf", "e3426e2", "37281bc", "27be856", "bdf3ef1", "cc325c0", "8e7b84d", "387b8ae", "34fbae7", "1530da2", "274a1f6", "b679cfa", "877b760", "cfe165d", "84e4e56", "e4ae4b0"); fixes['4.6']['fixed_ver'] = '4.6.6'; fixes['4.6']['fixed_ver_display'] = '4.6.6 (changeset 57318e1)'; fixes['4.6']['affected_ver_regex'] = '^4\\.6\\.'; fixes['4.6']['affected_changesets'] = make_list("9f22d72", "e0353b4", "76f1549", "9bac910", "c7a43e3", "913d4f8", "c5881c5", "b0239cd", "78fd0c3", "9079e0d", "1658a87", "22b6dfa", "a8cd231", "629eddd", "64c03bb", "b4660b4", "1ac8162", "747df3c", "5ae011e", "f974d32", "3300ad3", "d708b69"); fixes['4.7']['fixed_ver'] = '4.7.4'; fixes['4.7']['fixed_ver_display'] = '4.7.4-pre (changeset 5ca7d11)'; fixes['4.7']['affected_ver_regex'] = '^4\\.7\\.'; fixes['4.7']['affected_changesets'] = make_list("ebd47d4", "6a6a339", "e61be54", "e3f7a64", "957ad23", "b1ae705", "3add76f", "314a8fc", "d6aad63", "7c99633", "145c18d", "c3fa5cd", "487f8f9", "ffcfc40", "c7783d9", "3331050", "83966a3", "a67b223", "68dbba2", "2728470", "dea68ed", "9d12253", "73d7bc5", "b704b1a", "ca4ef7b", "ece330a", "3d63ebc", "30d50f8", "2dc3cdb", "5151257", "c9f3ca0", "e873251", "8aebf85", "c362cde", "fece08a"); fixes['4.8']['fixed_ver'] = '4.8.3'; fixes['4.8']['fixed_ver_display'] = '4.8.3-pre (changeset df89197)'; fixes['4.8']['affected_ver_regex'] = '^4\\.8\\.'; fixes['4.8']['affected_changesets'] = make_list("c4f969d", "b1f3f1d", "7251c06", "1960ca8", "866cfa1", "ddd6e41", "370cc9a", "39e3024", "9f092f5", "667f70e", "2116fec", "1a535c3", "ee3fc24", "d623d82", "dda458c", "c642b12", "80d7ef3", "ff4f60a", "36898eb", "4d7ccae", "e574046", "90dafa4", "c020cf2"); fixes['4.9']['fixed_ver'] = '4.9.1'; fixes['4.9']['fixed_ver_display'] = '4.9.1-pre (changeset 61a2d31)'; fixes['4.9']['affected_ver_regex'] = '^4\\.9\\.'; fixes['4.9']['affected_changesets'] = make_list("c2b0a92", "d842630", "ef61bcf", "44ceb19", "ae45442", "784afd9", "22032b2", "58da67f", "d1b64cc", "9cde7a8", "1cdcb36", "84c039e", "b244ac9", "612044a", "e8fd372", "a568e25", "8fef83e", "478e40c", "22ea731", "e7703a2", "91ded3b", "2cc3d32", "79775f5", "43cb0c4", "4821228", "d23bcc5", "308654c", "6fd84b3", "89b36cc", "a9ecd60", "798f6c9", "6508278", "5587d9a", "527fc5c", "5ff1de3", "692ed82", "9bf14bb", "c57b1f9", "6b147fd", "0e186e3", "afc5ebf", "266fc0e", "4698106", "f4f02f1", "0fada05", "ab4eb6c", "b29ecc7", "a11d14b", "107401e", "1b7834a"); fix = NULL; foreach ver_branch (keys(fixes)) { if (version =~ fixes[ver_branch]['affected_ver_regex']) { ret = ver_compare(ver:version, fix:fixes[ver_branch]['fixed_ver']); if (ret < 0) fix = fixes[ver_branch]['fixed_ver_display']; else if (ret == 0) { if (empty_or_null(changeset)) fix = fixes[ver_branch]['fixed_ver_display']; else foreach affected_changeset (fixes[ver_branch]['affected_changesets']) if (changeset == affected_changeset) fix = fixes[ver_branch]['fixed_ver_display']; } } } if (empty_or_null(fix)) audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path); items = make_array("Installed version", display_version, "Fixed version", fix, "Path", path); order = make_list("Path", "Installed version", "Fixed version"); report = report_items_str(report_items:items, ordered_fields:order) + '\n'; security_report_v4(port:0, extra:report, severity:SECURITY_HOLE);
NASL family Misc. NASL id XEN_SERVER_XSA-238.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by unspecified flaws in arch/x86/hvm/ioreq.c that is triggered when handling DMOPs. This may allow an attacker within a guest to consume excessive resources. Note this can only be exploited by domains controlling HVM guests. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103973 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103973 title Xen Hypervisor Multiple Functions DMOP Handling Guest-to-Host DoS (XSA-238) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2018-0248.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0248 for details. last seen 2020-06-01 modified 2020-06-02 plugin id 111992 published 2018-08-20 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111992 title OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre) NASL family Misc. NASL id XEN_SERVER_XSA-243.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an unspecified flaw in mm/shadow/multi.c that is triggered during the handling of self-linear shadow mappings with translated guests. This may allow an attacker on the guest to cause a denial of service or gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103978 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103978 title Xen Hypervisor Translated Guest Self-linear Shadow Mapping Handling Guest-to-Host Privilege Escalation (XSA-243) NASL family Misc. NASL id XEN_SERVER_XSA-240.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a stack overflow vulnerability that is triggered when recursion is not properly handled when de-typing linear pagetables. By stacking multiple layers of page tables, an attacker within a guest can cause a stack overflow, resulting in the Xen process to crash. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103975 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103975 title Xen Hypervisor Pagetable De-typing Recursion Handling Guest-to-Host DoS (XSA-240) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2812-1.NASL description This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-01 modified 2020-06-02 plugin id 104098 published 2017-10-23 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104098 title SUSE SLES11 Security Update : xen (SUSE-SU-2017:2812-1) NASL family Misc. NASL id CITRIX_XENSERVER_CTX228867.NASL description The version of Citrix XenServer installed on the remote host is missing a security hotfix. It is, therefore, affected by multiple vulnerabilities as noted in the CTX228867 advisory. last seen 2020-05-03 modified 2017-10-18 plugin id 103927 published 2017-10-18 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103927 title Citrix XenServer Multiple Vulnerabilities (CTX228867) NASL family Misc. NASL id XEN_SERVER_XSA-239.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an unspecified flaw in the hvmemul_do_io() function in arch/x86/hvm/emulate.c that is triggered as an internal structure may contain data from an uninitialized hypervisor stack slot. This may allow an attacker on the guest to gain access to potentially sensitive information from the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103974 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103974 title Xen Hypervisor I/O Intercept Code Hypervisor Stack Guest-to-Host Information Disclosure (XSA-239) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4050.NASL description Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, information leaks, privilege escalation or the execution of arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 104819 published 2017-11-29 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104819 title Debian DSA-4050-1 : xen - security update NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0162.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8 - BUILDINFO: xen commit=41067cbb7a1ecab6aa2ca0d8d40a4c9f36c5e76e - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba - BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e - BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee - x86/cpu: fix IST handling during PCPU bringup (Andrew Cooper) [Orabug: 26901421] (CVE-2017-15594) - x86/shadow: Don last seen 2020-06-01 modified 2020-06-02 plugin id 104201 published 2017-10-27 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104201 title OracleVM 3.2 / 3.3 / 3.4 : xen (OVMSA-2017-0162) NASL family Misc. NASL id XEN_SERVER_XSA-244.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an unspecified flaw that is triggered when, as a new CPU is brought online, it copies certain selector fields from CPU0 last seen 2020-06-01 modified 2020-06-02 plugin id 103979 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103979 title Xen Hypervisor New CPU Interrupt Descriptor Table (IDT) Copy Handling Guest-to-Host Privilege Escalation (XSA-244) NASL family Fedora Local Security Checks NASL id FEDORA_2017-D4709B0D8B.NASL description xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing [XSA-240] Stale TLB entry due to page type release race [XSA-241] page type reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244] ---- ARM: Some memory not scrubbed at boot [XSA-245] Qemu: vga: reachable assert failure during during display update [CVE-2017-13673] (#1486591) Qemu: vga: OOB read access during display update [CVE-2017-13672] (#1486562) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2017-11-02 plugin id 104347 published 2017-11-02 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104347 title Fedora 25 : xen (2017-d4709b0d8b) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1549.NASL description Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, informations leaks or privilege escalation. For Debian 8 last seen 2020-06-01 modified 2020-06-02 plugin id 118215 published 2018-10-19 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118215 title Debian DLA-1549-1 : xen security update NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-1181.NASL description This update for xen fixes several issues : These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-05 modified 2017-10-23 plugin id 104085 published 2017-10-23 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104085 title openSUSE Security Update : xen (openSUSE-2017-1181) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2864-1.NASL description This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238 bsc#1061077) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word last seen 2020-06-01 modified 2020-06-02 plugin id 104252 published 2017-10-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104252 title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:2864-1) NASL family Misc. NASL id XEN_SERVER_XSA-242.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an unspecified flaw in arch/x86/mm.c that is triggered as page type references are not properly handled when performing certain cleanup operations. This allows an attacker on the guest to consume excessive memory, resulting in a denial of service for the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall. last seen 2020-06-01 modified 2020-06-02 plugin id 103977 published 2017-10-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103977 title Xen Hypervisor Page Type Reference Handling Memory Exhaustion Guest-to-Host DoS (XSA-242)
References
- https://xenbits.xen.org/xsa/advisory-239.html
- http://www.securitytracker.com/id/1039568
- http://www.securityfocus.com/bid/101496
- https://support.citrix.com/article/CTX228867
- https://www.debian.org/security/2017/dsa-4050
- https://security.gentoo.org/glsa/201801-14
- https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html