SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:0845-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(135169);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/13");

  script_cve_id(
    "CVE-2019-6778",
    "CVE-2019-15034",
    "CVE-2019-20382",
    "CVE-2020-1711",
    "CVE-2020-7039",
    "CVE-2020-8608"
  );

  script_name(english:"SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1)");

  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 :

CVE-2020-7039: Fixed a heap buffer overflow in tcp_emu() routine while
emulating IRC and other protocols (bsc#1161066).

CVE-2019-15034: Fixed a buffer overflow in hw/display/bochs-display.c
due to improper PCI config space allocation (bsc#1166379).

CVE-2020-1711: Fixed an out of bounds heap buffer access
iscsi_co_block_status() routine which could have allowed a remote
denial of service or arbitrary code with privileges of the QEMU
process on the host (bsc#1166240).

CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() routine while
emulating the identification protocol and copying message data to a
socket buffer (bsc#1123156).

CVE-2020-8608: Fixed a heap buffer overflow in tcp_emu() routine while
emulating IRC and other protocols (bsc#1163018).

CVE-2019-20382: Fixed a memory leak in the VNC display driver which
could have led to exhaustion of the host memory leading to a potential
Denial of service (bsc#1165776).

Fixed live migration errors (bsc#1154790, bsc#1156794, bsc#1156642).

Fixed an issue where migrating VMs on KVM gets missing features:ospke
error (bsc#1162729).

Fixed an issue where booting up a guest system with mdev passthrough
device as installation device was failing (bsc#1158880).

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=1123156");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1154790");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1156642");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1156794");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1158880");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1161066");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1162161");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1162729");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1163018");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1165776");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1166240");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1166379");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-15034/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-20382/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-6778/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1711/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-7039/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-8608/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20200845-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0287d340");
  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 Server 12-SP5:zypper in -t patch
SUSE-SLE-SERVER-12-SP5-2020-845=1");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8608");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-6778");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/02");

  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-oss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-oss-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-audio-sdl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-sdl-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-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-sdl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-sdl-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  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) 2020-2022 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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-block-rbd-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-x86-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"s390x", reference:"qemu-s390-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"s390x", reference:"qemu-s390-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-alsa-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-alsa-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-oss-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-oss-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-pa-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-pa-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-sdl-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-sdl-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-curl-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-curl-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-iscsi-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-iscsi-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-ssh-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-ssh-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-debugsource-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-guest-agent-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-guest-agent-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-kvm-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-lang-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-tools-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-tools-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-curses-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-curses-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-gtk-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-gtk-debuginfo-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-sdl-3.1.1.1-3.9.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-sdl-debuginfo-3.1.1.1-3.9.1")) 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");
}