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nessusThis script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSUSE-2020-11.NASL
HistoryJan 15, 2020 - 12:00 a.m.

openSUSE Security Update : xen (openSUSE-2020-11)

2020-01-1500:00:00
This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
14

This update for xen fixes the following issues :

  • CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307).

  • CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to bitmaps with a compile time known size of 64 (bsc#1158003 XSA-307).

  • CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest,leading to a guest denial of service (bsc#1158004 XSA-308).

  • CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309).

  • CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310).

  • CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311).

  • CVE-2019-19579: Fixed a privilege escaltion where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).

  • Fixed an issue where PCI passthrough failed on AMD machine xen host (bsc#1157047).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2020-11.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(132904);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/18");

  script_cve_id("CVE-2019-19577", "CVE-2019-19578", "CVE-2019-19579", "CVE-2019-19580", "CVE-2019-19581", "CVE-2019-19582", "CVE-2019-19583");
  script_xref(name:"IAVB", value:"2019-B-0091-S");

  script_name(english:"openSUSE Security Update : xen (openSUSE-2020-11)");
  script_summary(english:"Check for the openSUSE-2020-11 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 :

  - CVE-2019-19581: Fixed a potential out of bounds on
    32-bit Arm (bsc#1158003 XSA-307).

  - CVE-2019-19582: Fixed a potential infinite loop when x86
    accesses to bitmaps with a compile time known size of 64
    (bsc#1158003 XSA-307).

  - CVE-2019-19583: Fixed improper checks which could have
    allowed HVM/PVH guest userspace code to crash the
    guest,leading to a guest denial of service (bsc#1158004
    XSA-308).

  - CVE-2019-19578: Fixed an issue where a malicious or
    buggy PV guest could have caused hypervisor crash
    resulting in denial of service affecting the entire host
    (bsc#1158005 XSA-309).

  - CVE-2019-19580: Fixed a privilege escalation where a
    malicious PV guest administrator could have been able to
    escalate their privilege to that of the host
    (bsc#1158006 XSA-310).

  - CVE-2019-19577: Fixed an issue where a malicious guest
    administrator could have caused Xen to access data
    structures while they are being modified leading to a
    crash (bsc#1158007 XSA-311). 

  - CVE-2019-19579: Fixed a privilege escaltion where an
    untrusted domain with access to a physical device can
    DMA into host memory (bsc#1157888 XSA-306).

  - Fixed an issue where PCI passthrough failed on AMD
    machine xen host (bsc#1157047). 

This update was imported from the SUSE:SLE-15-SP1:Update update
project."
  );
  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:"cvss_score_source", value:"CVE-2019-19579");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  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:15.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2022 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\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.1", 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:"SUSE15.1", reference:"xen-debugsource-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"xen-devel-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"xen-libs-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"xen-libs-debuginfo-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"xen-tools-domU-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"xen-tools-domU-debuginfo-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-doc-html-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-libs-32bit-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-libs-32bit-debuginfo-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-tools-4.12.1_06-lp151.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"xen-tools-debuginfo-4.12.1_06-lp151.2.9.1") ) 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 / xen-debugsource / xen-devel / xen-doc-html / xen-libs / etc");
}
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