Vulnerabilities > CVE-2018-15468 - Incorrect Authorization vulnerability in XEN

047910
CVSS 4.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
COMPLETE
local
low complexity
xen
CWE-863
nessus

Summary

An issue was discovered in Xen through 4.11.x. The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2018-1624.NASL
    descriptionThis 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 seen2020-06-05
    modified2018-12-31
    plugin id119951
    published2018-12-31
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/119951
    titleopenSUSE 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 familyFedora Local Security Checks
    NASL idFEDORA_2018-683DFDE81A.NASL
    descriptionL1 Terminal Fault speculative side channel patch bundle [XSA-273, CVE-2018-3620, CVE-2018-3646] drop patches also in the bundle, which also includes Use of v2 grant tables may cause crash on ARM [XSA-268] (#1616081) x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS [XSA-269] (#1616077) oxenstored does not apply quota-maxentity [XSA-272] (#1616080) 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 seen2020-06-05
    modified2019-01-03
    plugin id120490
    published2019-01-03
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/120490
    titleFedora 28 : xen (2018-683dfde81a) (Foreshadow)
    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-2018-683dfde81a.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(120490);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");
    
      script_cve_id("CVE-2018-15468", "CVE-2018-15469", "CVE-2018-15470", "CVE-2018-3620", "CVE-2018-3646");
      script_xref(name:"FEDORA", value:"2018-683dfde81a");
    
      script_name(english:"Fedora 28 : xen (2018-683dfde81a) (Foreshadow)");
      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:
    "L1 Terminal Fault speculative side channel patch bundle [XSA-273,
    CVE-2018-3620, CVE-2018-3646] drop patches also in the bundle, which
    also includes Use of v2 grant tables may cause crash on ARM [XSA-268]
    (#1616081) x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS
    [XSA-269] (#1616077) oxenstored does not apply quota-maxentity
    [XSA-272] (#1616080)
    
    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-2018-683dfde81a"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
      script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-3646");
      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:"2018/08/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/08/30");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03");
      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:"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-4.10.1-6.fc28")) flag++;
    
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_WARNING,
        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 familySuSE Local Security Checks
    NASL idOPENSUSE-2019-1046.NASL
    descriptionThis 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 seen2020-06-01
    modified2020-06-02
    plugin id123167
    published2019-03-27
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/123167
    titleopenSUSE 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 familyFedora Local Security Checks
    NASL idFEDORA_2018-915602DF63.NASL
    descriptionL1 Terminal Fault speculative side channel patch bundle [XSA-273, CVE-2018-3620, CVE-2018-3646] drop patches also in the bundle, which also includes Use of v2 grant tables may cause crash on ARM [XSA-268] (#1616081) x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS [XSA-269] (#1616077) oxenstored does not apply quota-maxentity [XSA-272] (#1616080) 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 seen2020-06-05
    modified2018-09-04
    plugin id112234
    published2018-09-04
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/112234
    titleFedora 27 : xen (2018-915602df63) (Foreshadow)
    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-2018-915602df63.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(112234);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");
    
      script_cve_id("CVE-2018-15468", "CVE-2018-15469", "CVE-2018-15470", "CVE-2018-3620", "CVE-2018-3646");
      script_xref(name:"FEDORA", value:"2018-915602df63");
    
      script_name(english:"Fedora 27 : xen (2018-915602df63) (Foreshadow)");
      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:
    "L1 Terminal Fault speculative side channel patch bundle [XSA-273,
    CVE-2018-3620, CVE-2018-3646] drop patches also in the bundle, which
    also includes Use of v2 grant tables may cause crash on ARM [XSA-268]
    (#1616081) x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS
    [XSA-269] (#1616077) oxenstored does not apply quota-maxentity
    [XSA-272] (#1616080)
    
    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-2018-915602df63"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
      script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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:"2018/08/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/08/31");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/04");
      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) 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-4.9.2-7.fc27")) flag++;
    
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_WARNING,
        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 familySuSE Local Security Checks
    NASL idSUSE_SU-2018-4300-1.NASL
    descriptionThis 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 seen2020-03-18
    modified2019-01-02
    plugin id120196
    published2019-01-02
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/120196
    titleSUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2018:4300-1) (Foreshadow)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from SUSE update advisory SUSE-SU-2018:4300-1.
    # The text itself is copyright (C) SUSE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(120196);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/16");
    
      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:"SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2018:4300-1) (Foreshadow)");
      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 4.10.2 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."
      );
      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=1078292"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1091107"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1094508"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1103275"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1103276"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1103279"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1105528"
      );
      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=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-2018-15468/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-15469/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-15470/"
      );
      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/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-3646/"
      );
      # https://www.suse.com/support/update/announcement/2018/suse-su-20184300-1/
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?3af96718"
      );
      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 Module for Server Applications 15:zypper in -t
    patch SUSE-SLE-Module-Server-Applications-15-2018-3063=1
    
    SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
    SUSE-SLE-Module-Basesystem-15-2018-3063=1"
      );
      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-devel");
      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:15");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/12/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/02");
      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/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:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "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 == "SLES15" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0", os_ver + " SP" + sp);
    if (os_ver == "SLED15" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0", os_ver + " SP" + sp);
    
    
    flag = 0;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-devel-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-libs-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-libs-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-4.10.2_04-3.9.1")) flag++;
    if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.10.2_04-3.9.1")) 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 familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2018-0282.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0282 for details.
    last seen2020-06-01
    modified2020-06-02
    plugin id119277
    published2018-11-29
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/119277
    titleOracleVM 3.4 : xen (OVMSA-2018-0282) (Foreshadow) (Spectre)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from OracleVM
    # Security Advisory OVMSA-2018-0282.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(119277);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/24");
    
      script_cve_id("CVE-2018-15468", "CVE-2018-3620", "CVE-2018-3639", "CVE-2018-3646", "CVE-2018-3665");
    
      script_name(english:"OracleVM 3.4 : xen (OVMSA-2018-0282) (Foreshadow) (Spectre)");
      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 : please see Oracle VM Security Advisory
    OVMSA-2018-0282 for details."
      );
      # https://oss.oracle.com/pipermail/oraclevm-errata/2018-November/000916.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?27b1c6ab"
      );
      script_set_attribute(
        attribute:"solution",
        value:"Update the affected xen / xen-tools packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N");
      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:U/C:H/I:N/A:N");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-3639");
      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:"2018/05/22");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/11/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/29");
      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) 2018-2020 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-4.4.4-222", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-4.4.4-222.el6")) flag++;
    if (rpm_exists(rpm:"xen-tools-4.4.4-222", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-tools-4.4.4-222.el6")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
      else security_warning(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 familyMisc.
    NASL idXEN_SERVER_XSA-269.NASL
    descriptionAccording to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a 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 seen2020-06-01
    modified2020-06-02
    plugin id112157
    published2018-08-28
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/112157
    titleXen Project MSR_DEBUGCTL 'Branch Trace Store' DoS (XSA-269)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(112157);
      script_version("1.5");
      script_cvs_date("Date: 2019/11/04");
    
      script_cve_id("CVE-2018-15468");
      script_xref(name:"IAVB", value:"2018-B-0111");
    
      script_name(english:"Xen Project MSR_DEBUGCTL 'Branch Trace Store' DoS (XSA-269)");
      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 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.");
      script_set_attribute(attribute:"see_also", value:"http://xenbits.xen.org/xsa/advisory-269.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:N/I:N/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:H/UI:N/S:C/C:N/I:N/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-15468");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/08/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/28");
    
      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) 2018-2019 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);
    
    fixes['4.6']['fixed_ver']           = '4.6.6';
    fixes['4.6']['fixed_ver_display']   = '4.6.6 (changeset 14402dc)';
    fixes['4.6']['affected_ver_regex']  = '^4\\.6\\.';
    fixes['4.6']['affected_changesets'] = make_list("45f6a27", "4c8d9f8",
      "1840f82", "a80ce17", "7d98594", "f30c9b6", "a1b8d86", "ff1d0b6",
      "3bd7cf6", "55c7bd6", "98d7948", "e0981f6", "91cf29f", "a0c3f80",
      "cf7d9d1", "170c48b", "c39cd00", "2d69b6d", "03ba272", "1fa0ecb",
      "598a375", "b7b7c4d", "ba7d011", "a544804", "2642b56", "03938ba",
      "542f711", "90dc163", "61a9fc5", "a671bd6", "365ecff", "237236a",
      "aa5a889", "3e3c11b", "8a2e1db", "cb0230a", "4336ffa", "3df7d47",
      "5ccba18", "991dd4c", "331a1af", "035c96f", "bfe8f3e", "4f0509d",
      "2f99d68", "0d3904f", "342a02f", "2d8e87e", "ac659af", "c1be09e",
      "e7b723b", "cd5232a", "f9f9634", "6981351", "12b9fca", "916ef0d",
      "055abe4", "c4333f5", "3d6970d", "a0db1f2", "6a74f4e", "5278a9a",
      "c53663a", "c5339c5", "3b96676", "2f3cde3", "acd8661", "5ddc3f8",
      "927aca7", "b4b553d", "b766574", "10898d7", "0b38930", "33f70b8",
      "cf03d32", "525c381", "4c1e2d3", "021009e", "4972c38", "bd461fc",
      "c9c1bb6", "0fbf30a", "7e20b9b", "d1618f4", "9d534c1", "dbb3553",
      "e54a8c6", "8005ed3", "9a852e0", "d779cc1", "c93bcf9", "15adcf3",
      "d7b8190", "2b1457f", "a357880", "ee23fcc", "5651015", "225e9c7",
      "3c70619", "1222333", "75bdd69", "8994cf3", "642c603", "c25ea9a",
      "feba571", "0163087", "44c2666", "db743b0", "41a5cce", "4e1b9e9",
      "4d21549", "ff4800c", "2613a1b", "8335c8a", "ab20c5c", "9089da9",
      "8edfc82", "af5b61a", "ec05090", "75263f7", "f7e273a", "03c7d2c",
      "9ce1a71", "a735c7a", "44ad7f6", "91dc902", "a065841", "c6e9e60",
      "f94c11d", "45ddc4e", "1ca93b7", "8c0c36e", "6e43623", "47d3e73",
      "ea80245", "37bb22b", "9b0c2a2", "8d3fe28", "be63d66", "9454e30",
      "aad5a67", "d8b0ebf", "f0208a4", "42b2c82", "57318e1", "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']           = '4.7.6';
    fixes['4.7']['fixed_ver_display']   = '4.7.6 (changeset 59732fd)';
    fixes['4.7']['affected_ver_regex']  = '^4\\.7\\.';
    fixes['4.7']['affected_changesets'] = make_list("3f7fd2b", "bcbd8b9",
      "dfee811", "95ff4e1", "ded2a37", "87dba80", "fe028e6", "a51e6a3",
      "0e66281", "51d9780", "91ca84c", "bce2dd6", "fa807e2", "97aff08",
      "e90e243", "c0e854b", "9858a1f", "a404136", "dc111e9", "0873699", "280a556");
    
    fixes['4.8']['fixed_ver']           = '4.8.5';
    fixes['4.8']['fixed_ver_display']   = '4.8.5-pre (changeset ed6fcdb)';
    fixes['4.8']['affected_ver_regex']  = '^4\\.8\\.';
    fixes['4.8']['affected_changesets'] = make_list("0406164", "e3d0ce3",
      "c00fabc", "3478439", "b81b74a", "b289403", "47fbc6e", "ee7bcea",
      "df5bbf7", "d96893f", "15508b3", "790ed15", "d838957", "aa45015",
      "b149b06", "c117d09", "e343ee8", "5566272", "f049cd6", "6dc0bc5",
      "37a1b4a", "f6a31ed", "08eda97", "96bf2db", "23975f5", "f3b0cdb",
      "f5ef10d", "de172b0", "3686d09", "4aec0c7");
    
    fixes['4.9']['fixed_ver']           = '4.9.3';
    fixes['4.9']['fixed_ver_display']   = '4.9.3-pre (changeset 8231311)';
    fixes['4.9']['affected_ver_regex']  = '^4\\.9\\.';
    fixes['4.9']['affected_changesets'] = make_list("ab34a43", "023da62",
      "01b624b", "c4fda1d", "946badc", "db356a4", "0c9baf6", "c847824",
      "66a3e68", "ec32158", "6522c1c", "284c601", "3d2dc31", "a1b223b",
      "a894c9d", "d866881", "819e114", "c6055c5", "cc15a7b", "15124d9",
      "7f4a82d", "e40bfc1", "53b22ad", "ec3030f", "84dd174", "c4d86c6",
      "a6ac51a", "514785c", "f904bdd", "036006f", "f5c692a", "612ff3c",
      "555ef37", "e76d0f7", "19f4f87", "c4cb7d3", "8cdaac2", "7fbbedd",
      "46863c6", "041844b", "0a9c2bd", "5d92007", "c257e35", "ad08a1b",
      "c50b1f6", "238007d", "0b1904c", "859fc55", "1c6b8f2", "f51d368",
      "8689cd1", "fc72347", "27b0dcd", "8d874a8", "1284b90", "12259ff",
      "516ac8a", "ed217c9", "11eb72e", "3f85ebb", "1ed3466", "37c3cb4",
      "2aca1d7", "22a6433", "8a29d83", "14a2ad6", "c6d09b2", "e5de993",
      "c2029b4", "5633efa", "13cb0c2", "da140c6", "39ab89d", "a29695c",
      "74fa955", "b3277ca", "cf264eb", "809d543", "002ea4d", "1f183b5",
      "150cdd9", "f7889b3", "903f2f6", "4bbed1c", "2303a9d", "d674b6e",
      "52fa2f7", "62bd851", "c06ec81", "dbb06d3", "24fa3fa", "b9b5a03",
      "35a71c6", "b844573", "48dd543", "7866e11", "db7accf", "921bff4",
      "c147505", "dc527ff", "781e23a", "72ca580", "47d41f6", "7a59015",
      "259bee9", "6d4c4f0", "3e010f5");
    
    fixes['4.10']['fixed_ver']           = '4.10.2';
    fixes['4.10']['fixed_ver_display']   = '4.10.2-pre (changeset 924a5ee)';
    fixes['4.10']['affected_ver_regex']  = '^4\\.10\\.';
    fixes['4.10']['affected_changesets'] = make_list("5fd0bb3", "9e7ee94",
      "0de39f3", "6504045", "b4d6690", "09b6924", "2450f34", "227da39",
      "07a9be7", "dcca8f0", "8af1a79", "93017a6", "6e57d28", "87c83af",
      "b07c76f", "541a105", "6f6207f", "6feafd8", "01eb262", "512d3e7",
      "74f437f", "371149b", "3607213", "7145525", "498716e", "fab92fc",
      "bc1289f", "4ccf397", "381fdae", "d976fe5", "a645331", "c220240",
      "78a86a7", "6e0e45a", "b81a8bf", "de578bc", "3bd7966", "dd07d3e",
      "b5e9f1e", "e0da0d9", "2308158", "b2444d2", "42219af", "1d5a9ec",
      "eeb1576", "4b9dc6d", "52447b3", "7b35e78", "8d48204", "b3a7f2f",
      "fb78102", "245eaee", "18833a8", "72e5b16", "27a4161", "23114db",
      "6300cdd", "2a0913e", "daaf3dd", "c2b84e7", "908ddbb", "c75bbf1",
      "e9dc0a6", "470daef", "c9fdfbb", "49aebf4", "48ad1ab", "98a285c",
      "cb2a83f", "51b7b5d", "840d683", "ec50d21", "a035518", "8342e3f",
      "aaf66de", "7e21b75", "f155f55", "3a903b3", "2e2f337", "850e5ad",
      "13fa2a4", "ade8f98", "a7f8880", "3bb756b", "1aa6305", "d93ae63",
      "6b8d820", "f253feb");
    
    fixes['4.11']['fixed_ver']           = '4.11.1';
    fixes['4.11']['fixed_ver_display']   = '4.11.1-pre (changeset 48fb482)';
    fixes['4.11']['affected_ver_regex']  = '^4\\.11\\.';
    fixes['4.11']['affected_changesets'] = make_list("fa79f9e", "1d32c21",
      "7b420e8", "8b35b97", "cfdd4e8", "218d403", "b52017c", "52b8f9a",
      "935e9c4", "61cc876", "4254e98", "6fe9726", "33ced72", "7de2155",
      "06d2a76", "543027c", "037fe82", "353edf1", "75313e4", "5908b48",
      "bd51a64", "0a2016c", "b53e0de", "a44cf0c", "ac35e05", "10c5482",
      "4bdeedb", "da33530", "e932371", "1fd87ba");
    
    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_WARNING);
    
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2018-1331.NASL
    descriptionThis update for xen fixes the following issues : XEN was updated to the Xen 4.9.3 bug fix only release (bsc#1027519) - CVE-2018-17963: qemu_deliver_packet_iov accepted packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact. (bsc#1111014) - CVE-2018-15470: oxenstored might not have enforced the configured quota-maxentity. This allowed a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS. (XSA-272) (bsc#1103279) - CVE-2018-15469: ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash). (XSA-268) (bsc#1103275) Note that SUSE does not ship ARM Xen, so we are not affected. - CVE-2018-15468: The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service. (XSA-269) (bsc#1103276) - CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis. (XSA-273) (bsc#1091107) Non security issues fixed : - The affinity reporting via
    last seen2020-06-05
    modified2018-10-31
    plugin id118563
    published2018-10-31
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118563
    titleopenSUSE Security Update : xen (openSUSE-2018-1331) (Foreshadow)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-3490-1.NASL
    descriptionThis update for xen fixes the following issues : XEN was updated to the Xen 4.9.3 bug fix only release (bsc#1027519) CVE-2018-17963: qemu_deliver_packet_iov accepted packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact. (bsc#1111014) CVE-2018-15470: oxenstored might not have enforced the configured quota-maxentity. This allowed a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS. (XSA-272) (bsc#1103279) CVE-2018-15469: ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash). (XSA-268) (bsc#1103275) Note that SUSE does not ship ARM Xen, so we are not affected. CVE-2018-15468: The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service. (XSA-269) (bsc#1103276) CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis. (XSA-273) (bsc#1091107) Non security issues fixed: The affinity reporting via
    last seen2020-06-01
    modified2020-06-02
    plugin id118491
    published2018-10-29
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118491
    titleSUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:3490-1) (Foreshadow)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-3332-1.NASL
    descriptionThis update for xen fixes the following issues : CVE-2018-17963: qemu_deliver_packet_iov accepted packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact. (bsc#1111014) CVE-2018-15468: The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) could have locked up the entire host, causing a Denial of Service. (XSA-269) (bsc#1103276) Non security issues fixed: Kernel oops in 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 seen2020-06-01
    modified2020-06-02
    plugin id118351
    published2018-10-24
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118351
    titleSUSE SLES12 Security Update : xen (SUSE-SU-2018:3332-1)
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201810-06.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201810-06 (Xen: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details. Impact : A local attacker could cause a Denial of Service condition or disclose sensitive information. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id118506
    published2018-10-31
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/118506
    titleGLSA-201810-06 : Xen: Multiple vulnerabilities (Foreshadow) (Meltdown) (Spectre)