SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:0521-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2021:0521-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(146643);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/22");

  script_cve_id(
    "CVE-2020-11947",
    "CVE-2021-20181",
    "CVE-2021-20203",
    "CVE-2021-20221"
  );

  script_name(english:"SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:0521-1)");

  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 qemu fixes the following issues :

Fixed potential privilege escalation in virtfs (CVE-2021-20181
bsc#1182137)

Fixed out-of-bound access in iscsi (CVE-2020-11947 bsc#1180523)

Fixed out-of-bound access in vmxnet3 emulation (CVE-2021-20203
bsc#1181639)

Fixed out-of-bound access in ARM interrupt handling (CVE-2021-20221
bsc#1181933)

Fixed vfio-pci device on s390 enters error state (bsc#1179717
bsc#1179719)

Fixed 'Failed to try-restart [email protected]' error while updating
the qemu-guest-agent. (bsc#1178565)

Apply fixes to qemu scsi passthrough with respect to timeout and error
conditions, including using more correct status codes. Add more qemu
tracing which helped track down these issues (bsc#1178049)

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=1178049");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178565");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1179717");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1179719");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1180523");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181639");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181933");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1182137");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-11947/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20181/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20203/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20221/");
  # https://www.suse.com/support/update/announcement/2021/suse-su-20210521-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?506ab89e");
  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-SP2 :

zypper in -t patch
SUSE-SLE-Module-Server-Applications-15-SP2-2021-521=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-521=1");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20181");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-spice-app");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-spice-app-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP2", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-audio-alsa-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-audio-alsa-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-audio-pa-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-audio-pa-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-ui-curses-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-ui-curses-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-ui-gtk-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-ui-gtk-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-x86-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"x86_64", reference:"qemu-x86-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"s390x", reference:"qemu-s390-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", cpu:"s390x", reference:"qemu-s390-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-curl-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-curl-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-iscsi-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-iscsi-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-rbd-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-rbd-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-ssh-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-block-ssh-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-debugsource-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-guest-agent-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-guest-agent-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-kvm-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-lang-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-tools-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-tools-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-ui-spice-app-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"qemu-ui-spice-app-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"qemu-debuginfo-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"qemu-debugsource-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"qemu-tools-4.2.1-11.13.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"qemu-tools-debuginfo-4.2.1-11.13.1")) 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, "qemu");
}