Vulnerabilities > CVE-2018-18883 - NULL Pointer Dereference vulnerability in XEN
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 48 |
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2018-F20A0CEAD5.NASL description x86: Nested VT-x usable even when disabled [XSA-278] 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 2018-11-13 plugin id 118898 published 2018-11-13 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/118898 title Fedora 27 : xen (2018-f20a0cead5) 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-2018-f20a0cead5. # include("compat.inc"); if (description) { script_id(118898); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2018-18883"); script_xref(name:"FEDORA", value:"2018-f20a0cead5"); script_name(english:"Fedora 27 : xen (2018-f20a0cead5)"); 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: "x86: Nested VT-x usable even when disabled [XSA-278] 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-2018-f20a0cead5" ); 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_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); 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:"2018/11/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/11/11"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/13"); 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-4.9.3-2.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-2018-4070-1.NASL description This update for xen fixes the following issues : Security issues fixed : CVE-2018-18849: Fixed an out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin (bsc#1114423). CVE-2018-18883: Fixed a NULL pointer dereference that could have been triggered by nested VT-x that where not properly restricted (XSA-278)(bsc#1114405). CVE-2018-19965: Fixed denial of service issue from attempting to use INVPCID with a non-canonical addresses (XSA-279)(bsc#1115045). CVE-2018-19966: Fixed issue introduced by XSA-240 that could have caused conflicts with shadow paging (XSA-280)(bsc#1115047). CVE-2018-19961 CVE-2018-19962: Fixed insufficient TLB flushing / improper large page mappings with AMD IOMMUs (XSA-275)(bsc#1115040). Non-security issues fixed: Added upstream bug fixes (bsc#1027519). Fixed XEN SLE12-SP1 domU hang on SLE12-SP3 HV (bsc#1108940). 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. last seen 2020-04-30 modified 2018-12-13 plugin id 119648 published 2018-12-13 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/119648 title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:4070-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2018:4070-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(119648); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/28"); script_cve_id("CVE-2018-18849", "CVE-2018-18883", "CVE-2018-19961", "CVE-2018-19962", "CVE-2018-19965", "CVE-2018-19966"); script_name(english:"SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:4070-1)"); 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 the following issues : Security issues fixed : CVE-2018-18849: Fixed an out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin (bsc#1114423). CVE-2018-18883: Fixed a NULL pointer dereference that could have been triggered by nested VT-x that where not properly restricted (XSA-278)(bsc#1114405). CVE-2018-19965: Fixed denial of service issue from attempting to use INVPCID with a non-canonical addresses (XSA-279)(bsc#1115045). CVE-2018-19966: Fixed issue introduced by XSA-240 that could have caused conflicts with shadow paging (XSA-280)(bsc#1115047). CVE-2018-19961 CVE-2018-19962: Fixed insufficient TLB flushing / improper large page mappings with AMD IOMMUs (XSA-275)(bsc#1115040). Non-security issues fixed: Added upstream bug fixes (bsc#1027519). Fixed XEN SLE12-SP1 domU hang on SLE12-SP3 HV (bsc#1108940). 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=1108940" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114405" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114423" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115040" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115045" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115047" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-18849/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-18883/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19961/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19962/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19965/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19966/" ); # https://www.suse.com/support/update/announcement/2018/suse-su-20184070-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?14d54f65" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-2896=1 SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-2896=1 SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-2896=1 SUSE CaaS Platform ALL : To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way. SUSE CaaS Platform 3.0 : To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way." ); 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:U/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:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); 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-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:"2018/11/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/12/11"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/13"); 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:"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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "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:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP3", os_ver + " SP" + sp); if (os_ver == "SLED12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP3", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-debugsource-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-doc-html-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-32bit-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-debuginfo-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-debugsource-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-libs-32bit-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-libs-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.9.3_03-3.47.1")) flag++; if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-4.9.3_03-3.47.1")) 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 SuSE Local Security Checks NASL id OPENSUSE-2018-1624.NASL description This update for xen fixes the following issues : Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) - CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) - CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) - CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) - CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) - CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) - CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) - CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed : - Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) - Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) - Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508) This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-05 modified 2018-12-31 plugin id 119951 published 2018-12-31 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/119951 title openSUSE Security Update : xen (openSUSE-2018-1624) (Foreshadow) 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-2018-1624. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(119951); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2018-15468", "CVE-2018-15469", "CVE-2018-15470", "CVE-2018-18883", "CVE-2018-19961", "CVE-2018-19962", "CVE-2018-19965", "CVE-2018-19966", "CVE-2018-3646"); script_name(english:"openSUSE Security Update : xen (openSUSE-2018-1624) (Foreshadow)"); script_summary(english:"Check for the openSUSE-2018-1624 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 the following issues : Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) - CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) - CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) - CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) - CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) - CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) - CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) - CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed : - Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) - Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) - Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508) This update was imported from the SUSE:SLE-15: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=1078292" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1091107" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1094508" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103275" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103276" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103279" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1105528" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1108940" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1114405" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115040" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115045" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115047" ); 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_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); 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-32bit-debuginfo"); 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-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:15.0"); script_set_attribute(attribute:"patch_publication_date", value:"2018/12/29"); script_set_attribute(attribute:"in_the_news", value:"true"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/31"); 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:"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 !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE15.0", reference:"xen-debugsource-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-devel-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-doc-html-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.10.2_04-lp150.2.12.1") ) 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 / xen-debugsource / xen-devel / xen-doc-html / xen-libs / etc"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-1530.NASL description This update for xen fixes the following issues : Security issues fixed : - CVE-2018-18849: Fixed an out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin (bsc#1114423). - CVE-2018-18883: Fixed a NULL pointer dereference that could have been triggered by nested VT-x that where not properly restricted (XSA-278)(bsc#1114405). - CVE-2018-19965: Fixed denial of service issue from attempting to use INVPCID with a non-canonical addresses (XSA-279)(bsc#1115045). - CVE-2018-19966: Fixed issue introduced by XSA-240 that could have caused conflicts with shadow paging (XSA-280)(bsc#1115047). - CVE-2018-19961 CVE-2018-19962: Fixed insufficient TLB flushing / improper large page mappings with AMD IOMMUs (XSA-275)(bsc#1115040). Non-security issues fixed : - Added upstream bug fixes (bsc#1027519). This update was imported from the SUSE:SLE-12-SP3:Update update project. last seen 2020-06-05 modified 2018-12-13 plugin id 119642 published 2018-12-13 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/119642 title openSUSE Security Update : xen (openSUSE-2018-1530) 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-2018-1530. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(119642); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2018-18849", "CVE-2018-18883", "CVE-2018-19961", "CVE-2018-19962", "CVE-2018-19965", "CVE-2018-19966"); script_name(english:"openSUSE Security Update : xen (openSUSE-2018-1530)"); script_summary(english:"Check for the openSUSE-2018-1530 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 the following issues : Security issues fixed : - CVE-2018-18849: Fixed an out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin (bsc#1114423). - CVE-2018-18883: Fixed a NULL pointer dereference that could have been triggered by nested VT-x that where not properly restricted (XSA-278)(bsc#1114405). - CVE-2018-19965: Fixed denial of service issue from attempting to use INVPCID with a non-canonical addresses (XSA-279)(bsc#1115045). - CVE-2018-19966: Fixed issue introduced by XSA-240 that could have caused conflicts with shadow paging (XSA-280)(bsc#1115047). - CVE-2018-19961 CVE-2018-19962: Fixed insufficient TLB flushing / improper large page mappings with AMD IOMMUs (XSA-275)(bsc#1115040). Non-security issues fixed : - Added upstream bug fixes (bsc#1027519). This update was imported from the SUSE:SLE-12-SP3: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=1108940" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1114405" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1114423" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115040" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115045" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115047" ); 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:U/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:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); 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-debuginfo"); 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:42.3"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/12/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/13"); 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:"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\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.3", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(x86_64)$") audit(AUDIT_ARCH_NOT, "x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.3", reference:"xen-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-debugsource-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-devel-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-doc-html-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-libs-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-libs-debuginfo-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-debuginfo-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-domU-4.9.3_03-34.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-domU-debuginfo-4.9.3_03-34.1") ) 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 / xen-debugsource / xen-devel / xen-doc-html / xen-libs / etc"); }NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-0003-1.NASL description This update for xen fixes the following issues : Update to Xen 4.11.1 bug fix release (bsc#1027519) CVE-2018-17963: Fixed an integer overflow issue in the QEMU emulator, which could occur when a packet with large packet size is processed. A user inside a guest could have used this flaw to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1111014) CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1114423) CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) CVE-2018-19963: Fixed the allocation of pages used to communicate with external emulators, which may have cuased Xen to crash, resulting in a Denial of Service (DoS). (XSA-276) (bsc#1115043) CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047) CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988) CVE-2018-19964: Fixed the incorrect error handling of p2m page removals, which allowed a guest to cause a deadlock, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-277) (bsc#1115044) CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756). Other bugs fixed: Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) 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. last seen 2020-03-18 modified 2019-01-07 plugin id 120983 published 2019-01-07 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120983 title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:0003-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2019:0003-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(120983); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/26"); script_cve_id("CVE-2018-17963", "CVE-2018-18849", "CVE-2018-18883", "CVE-2018-19665", "CVE-2018-19961", "CVE-2018-19962", "CVE-2018-19963", "CVE-2018-19964", "CVE-2018-19965", "CVE-2018-19966", "CVE-2018-19967"); script_name(english:"SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:0003-1)"); 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 the following issues : Update to Xen 4.11.1 bug fix release (bsc#1027519) CVE-2018-17963: Fixed an integer overflow issue in the QEMU emulator, which could occur when a packet with large packet size is processed. A user inside a guest could have used this flaw to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1111014) CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1114423) CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) CVE-2018-19963: Fixed the allocation of pages used to communicate with external emulators, which may have cuased Xen to crash, resulting in a Denial of Service (DoS). (XSA-276) (bsc#1115043) CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047) CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988) CVE-2018-19964: Fixed the incorrect error handling of p2m page removals, which allowed a guest to cause a deadlock, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-277) (bsc#1115044) CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756). Other bugs fixed: Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) 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=1108940" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1111014" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114405" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114423" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114988" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115040" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115043" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115044" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115045" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115047" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1117756" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-17963/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-18849/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-18883/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19665/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19961/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19962/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19963/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19964/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19965/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19966/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19967/" ); # https://www.suse.com/support/update/announcement/2019/suse-su-20190003-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?3d0f22aa" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Software Development Kit 12-SP4:zypper in -t patch SUSE-SLE-SDK-12-SP4-2019-3=1 SUSE Linux Enterprise Server 12-SP4:zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3=1 SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-3=1" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); 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-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:"2018/10/09"); script_set_attribute(attribute:"patch_publication_date", value:"2019/01/02"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/07"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019-2020 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/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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "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:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP4", os_ver + " SP" + sp); if (os_ver == "SLED12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP4", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-debugsource-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-doc-html-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-debuginfo-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-debugsource-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.11.1_02-2.3.1")) flag++; if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-4.11.1_02-2.3.1")) 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 SuSE Local Security Checks NASL id OPENSUSE-2019-1046.NASL description This update for xen fixes the following issues : Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) - CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) - CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) - CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) - CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) - CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) - CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) - CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed : - Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) - Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) - Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508) This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 123167 published 2019-03-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123167 title openSUSE Security Update : xen (openSUSE-2019-1046) (Foreshadow) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2019-1046. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(123167); script_version("1.2"); script_cvs_date("Date: 2020/01/31"); script_cve_id("CVE-2018-15468", "CVE-2018-15469", "CVE-2018-15470", "CVE-2018-18883", "CVE-2018-19961", "CVE-2018-19962", "CVE-2018-19965", "CVE-2018-19966", "CVE-2018-3646"); script_name(english:"openSUSE Security Update : xen (openSUSE-2019-1046) (Foreshadow)"); script_summary(english:"Check for the openSUSE-2019-1046 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 the following issues : Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed : - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) - CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) - CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) - CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) - CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) - CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) - CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) - CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed : - Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) - Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) - Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508) This update was imported from the SUSE:SLE-15: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=1078292" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1091107" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1094508" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103275" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103276" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103279" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1105528" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1108940" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1114405" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115040" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115045" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1115047" ); 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:U/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:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); 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-32bit-debuginfo"); 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-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:15.0"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14"); script_set_attribute(attribute:"patch_publication_date", value:"2019/03/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/27"); script_set_attribute(attribute:"in_the_news", value:"true"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019-2020 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 !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE15.0", reference:"xen-debugsource-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-devel-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-doc-html-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-debuginfo-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-4.10.2_04-lp150.2.12.1") ) flag++; if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.10.2_04-lp150.2.12.1") ) 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 / xen-debugsource / xen-devel / xen-doc-html / xen-libs-32bit / etc"); }NASL family Fedora Local Security Checks NASL id FEDORA_2018-73DD8DE892.NASL description x86: Nested VT-x usable even when disabled [XSA-278] 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 2019-01-03 plugin id 120529 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120529 title Fedora 28 : xen (2018-73dd8de892) 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-2018-73dd8de892. # include("compat.inc"); if (description) { script_id(120529); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2018-18883"); script_xref(name:"FEDORA", value:"2018-73dd8de892"); script_name(english:"Fedora 28 : xen (2018-73dd8de892)"); 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: "x86: Nested VT-x usable even when disabled [XSA-278] 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-2018-73dd8de892" ); 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:U/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:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); 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:28"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/11/11"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019-2020 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:"^28([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 28", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC28", reference:"xen-4.10.2-2.fc28")) 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 Misc. NASL id XEN_SERVER_XSA-278.NASL description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a guest-to-host denial of service vulnerability. 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 118570 published 2018-10-31 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/118570 title Xen Project Nested VT-x Instruction Guest-to-Host DoS (XSA-278) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-4300-1.NASL description This update for xen fixes the following issues : Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed : CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed: Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508) 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. last seen 2020-03-18 modified 2019-01-02 plugin id 120196 published 2019-01-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120196 title SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2018:4300-1) (Foreshadow) NASL family Misc. NASL id CITRIX_XENSERVER_CTX239100.NASL description The version of Citrix XenServer running on the remote host is missing a security hotfix. It is, therefore, affected by by a guest-to-host denial of service vulnerability. last seen 2020-06-01 modified 2020-06-02 plugin id 118856 published 2018-11-09 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/118856 title Citrix XenServer Nested VT-x Instruction Guest-to-Host DoS (CTX239100) NASL family Fedora Local Security Checks NASL id FEDORA_2018-A24754252A.NASL description x86: Nested VT-x usable even when disabled [XSA-278] 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 2019-01-03 plugin id 120665 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120665 title Fedora 29 : xen (2018-a24754252a)