openSUSE: Security Advisory for xen (openSUSE-SU-2020:1608-1)

# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.853479");
  script_version("2025-02-28T05:38:49+0000");
  script_cve_id("CVE-2020-25595", "CVE-2020-25596", "CVE-2020-25597", "CVE-2020-25598", "CVE-2020-25599", "CVE-2020-25600", "CVE-2020-25601", "CVE-2020-25602", "CVE-2020-25603", "CVE-2020-25604");
  script_tag(name:"cvss_base", value:"6.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:C");
  script_tag(name:"last_modification", value:"2025-02-28 05:38:49 +0000 (Fri, 28 Feb 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-11-11 06:15:00 +0000 (Wed, 11 Nov 2020)");
  script_tag(name:"creation_date", value:"2020-10-05 03:00:48 +0000 (Mon, 05 Oct 2020)");
  script_name("openSUSE: Security Advisory for xen (openSUSE-SU-2020:1608-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/opensuse", "ssh/login/rpms", re:"ssh/login/release=openSUSELeap15\.2");

  script_xref(name:"openSUSE-SU", value:"2020:1608-1");
  script_xref(name:"URL", value:"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen'
  package(s) announced via the openSUSE-SU-2020:1608-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for xen fixes the following issues:

  - CVE-2020-25602: Fixed an issue where there was a crash when handling
  guest access to MSR_MISC_ENABLE was thrown (bsc#1176339, XSA-333)

  - CVE-2020-25598: Added a missing unlock in XENMEM_acquire_resource error
  path (bsc#1176341, XSA-334)

  - CVE-2020-25604: Fixed a race condition when migrating timers between x86
  HVM vCPU-s (bsc#1176343, XSA-336)

  - CVE-2020-25595: Fixed an issue where PCI passthrough code was reading
  back hardware registers (bsc#1176344, XSA-337)

  - CVE-2020-25597: Fixed an issue where a valid event channels may not turn
  invalid (bsc#1176346, XSA-338)

  - CVE-2020-25596: Fixed a potential denial of service in x86 pv guest
  kernel via SYSENTER (bsc#1176345, XSA-339)

  - CVE-2020-25603: Fixed an issue due to  missing barriers when
  accessing/allocating an event channel (bsc#1176347, XSA-340)

  - CVE-2020-25600: Fixed out of bounds event channels available to 32-bit
  x86 domains (bsc#1176348, XSA-342)

  - CVE-2020-25599: Fixed race conditions with evtchn_reset()
  (bsc#1176349, XSA-343)

  - CVE-2020-25601: Fixed an issue due to lack of preemption in
  evtchn_reset() / evtchn_destroy() (bsc#1176350, XSA-344)

  - Various other fixes (bsc#1027519)

  This update was imported from the SUSE:SLE-15-SP2:Update update project.


  Patch Instructions:

  To install this openSUSE 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:

  - openSUSE Leap 15.2:

  zypper in -t patch openSUSE-2020-1608=1");

  script_tag(name:"affected", value:"'xen' package(s) on openSUSE Leap 15.2.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "openSUSELeap15.2") {

  if(!isnull(res = isrpmvuln(pkg:"xen-debugsource", rpm:"xen-debugsource~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit-debuginfo", rpm:"xen-libs-32bit-debuginfo~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-xendomains-wait-disk", rpm:"xen-tools-xendomains-wait-disk~4.13.1_08~lp152.2.9.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);