SUSE SLED12 / SLES12 Security Update : xerces-c (SUSE-SU-2016:2154-1)

#%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-2016:2154-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(93308);
  script_version("2.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2016-2099", "CVE-2016-4463");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : xerces-c (SUSE-SU-2016:2154-1)");
  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:
"xerces-c was updated to fix one security issue. This security issue
was fixed :

  - CVE-2016-2099: Use-after-free vulnerability in
    validators/DTD/DTDScanner.cpp in Apache Xerces C++ did
    not properly handle exceptions raised in the XMLReader
    class, which allowed context-dependent attackers to have
    unspecified impact via an invalid character in an XML
    document (bsc#979208).

  - CVE-2016-4463: Apache Xerces-C XML Parser crashed on
    malformed DTD (bnc#985860).

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=979208"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=985860"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-2099/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4463/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20162154-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3aa157e4"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t
patch SUSE-SLE-SDK-12-SP1-2016-1271=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2016-1271=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP1-2016-1271=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  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_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxerces-c");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxerces-c-3_1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxerces-c-3_1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xerces-c-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xerces-c-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxerces-c-3_1-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxerces-c-3_1-debuginfo-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"xerces-c-debuginfo-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"xerces-c-debugsource-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxerces-c-3_1-32bit-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxerces-c-3_1-debuginfo-32bit-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxerces-c-3_1-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxerces-c-3_1-32bit-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxerces-c-3_1-debuginfo-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxerces-c-3_1-debuginfo-32bit-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"xerces-c-debuginfo-3.1.1-12.3")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"xerces-c-debugsource-3.1.1-12.3")) 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, "xerces-c");
}