SUSE SLES11 Security Update : xorg-x11-libX11 (SUSE-SU-2018:2934-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:2934-1.
# The text itself is copyright (C) SUSE.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(117859);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2018-14598", "CVE-2018-14599", "CVE-2018-14600");

  script_name(english:"SUSE SLES11 Security Update : xorg-x11-libX11 (SUSE-SU-2018:2934-1)");
  script_summary(english:"Checks rpm output for the updated package.");

  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 xorg-x11-libX11 fixes the following issues :

CVE-2018-14599: The function XListExtensions was vulnerable to an
off-by-one error caused by malicious server responses, leading to DoS
or possibly unspecified other impact (bsc#1102062)

CVE-2018-14600: The function XListExtensions interpreted a variable as
signed instead of unsigned, resulting in an out-of-bounds write (of up
to 128 bytes), leading to DoS or remote code execution (bsc#1102068)

CVE-2018-14598: A malicious server could have sent a reply in which
the first string overflows, causing a variable to be set to NULL that
will be freed later on, leading to DoS (segmentation fault)
(bsc#1102073)

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=1102062"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1102068"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1102073"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-14598/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-14599/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-14600/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20182934-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9a3e6e4d"
  );
  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 Software Development Kit 11-SP4:zypper in -t
patch sdksp4-xorg-x11-libX11-13801=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-xorg-x11-libX11-13801=1

SUSE Linux Enterprise Server 11-SP3-LTSS:zypper in -t patch
slessp3-xorg-x11-libX11-13801=1

SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch
sleposp3-xorg-x11-libX11-13801=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-xorg-x11-libX11-13801=1

SUSE Linux Enterprise Debuginfo 11-SP3:zypper in -t patch
dbgsp3-xorg-x11-libX11-13801=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xorg-x11-libX11");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 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:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "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 == "SLES11" && (! preg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP3/4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xorg-x11-libX11-32bit-7.4-5.11.72.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"xorg-x11-libX11-32bit-7.4-5.11.72.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"xorg-x11-libX11-7.4-5.11.72.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xorg-x11-libX11-32bit-7.4-5.11.72.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"s390x", reference:"xorg-x11-libX11-32bit-7.4-5.11.72.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"xorg-x11-libX11-7.4-5.11.72.9.1")) 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, "xorg-x11-libX11");
}