SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2018:2340-1) (Spectre)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:2340-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(120081);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/25");

  script_cve_id("CVE-2018-11806", "CVE-2018-3639", "CVE-2018-7550");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2018:2340-1) (Spectre)");
  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 qemu to version 2.11.2 fixes the following issues:
Security issue fixed :

  - CVE-2018-11806: Fix heap buffer overflow issue that can
    happen while reassembling fragmented datagrams
    (bsc#1096223).

  - CVE-2018-3639: Mitigation functionality for Speculative
    Store Bypass issue in x86 (bsc#1087082).

  - CVE-2018-7550: Fix out of bounds read and write memory
    access, potentially leading to code execution
    (bsc#1083291) Bug fixes :

  - bsc#1091695: SEV guest will not lauchh with
    qemu-system-x86_64 version 2.11.1.

  - bsc#1094898: qemu-guest-agent service doesn't work in
    version Leap 15.0.

  - bsc#1094725: `virsh blockresize` does not work with Xen
    qdisks.

  - bsc#1094913: QEMU crashes when starting a guest with
    more than 7.999TB.

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=1083291"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1087082"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1091695"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094725"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094898"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094913"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1096223"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-11806/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-3639/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-7550/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20182340-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?719c7d19"
  );
  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-15-2018-1577=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2018-1577=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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-11806");
  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:novell:suse_linux:qemu");
  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-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:"vuln_publication_date", value:"2018/03/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/15");
  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) 2019-2022 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/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:"^(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:"qemu-x86-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"qemu-x86-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"qemu-s390-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"qemu-s390-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-curl-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-curl-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-iscsi-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-iscsi-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-rbd-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-rbd-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-ssh-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-block-ssh-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-debugsource-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-guest-agent-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-guest-agent-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-kvm-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-lang-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-tools-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"qemu-tools-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"qemu-debuginfo-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"qemu-debugsource-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"qemu-tools-2.11.2-9.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"qemu-tools-debuginfo-2.11.2-9.4.1")) 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, "qemu");
}