SUSE SLED12 / SLES12 Security Update : libxslt (SUSE-SU-2017:1313-1)

#%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-2017:1313-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(100243);
  script_version("3.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2015-7995", "CVE-2015-9019", "CVE-2016-4738", "CVE-2017-5029");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : libxslt (SUSE-SU-2017:1313-1)");
  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:
"This update for libxslt fixes the following issues :

  - CVE-2017-5029: The xsltAddTextString function in
    transform.c lacked a check for integer overflow during a
    size calculation, which allowed a remote attacker to
    perform an out of bounds memory write via a crafted HTML
    page (bsc#1035905).

  - CVE-2016-4738: Fix heap overread in
    xsltFormatNumberConversion: An empty decimal-separator
    could cause a heap overread. This can be exploited to
    leak a couple of bytes after the buffer that holds the
    pattern string (bsc#1005591).

  - CVE-2015-9019: Properly initialize random generator
    (bsc#934119).

  - CVE-2015-7995: Vulnerability in function
    xsltStylePreCompute' in preproc.c could cause a type
    confusion leading to DoS. (bsc#952474)

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=1005591"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1035905"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=934119"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=952474"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-7995/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-9019/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4738/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5029/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20171313-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d0a6df73"
  );
  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-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-793=1

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t
patch SUSE-SLE-SDK-12-SP1-2017-793=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-793=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-793=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2017-793=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-793=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP1-2017-793=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/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:libxslt-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxslt-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxslt-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxslt1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxslt1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1/2", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1/2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt-debugsource-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt-tools-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt-tools-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt1-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt1-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt1-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libxslt1-debuginfo-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt-debugsource-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt-tools-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt-tools-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt1-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt1-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt1-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxslt1-debuginfo-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt-debugsource-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt-tools-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt-tools-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt1-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt1-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt1-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"libxslt1-debuginfo-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt-debugsource-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt-tools-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt-tools-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt1-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt1-32bit-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt1-debuginfo-1.1.28-16.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxslt1-debuginfo-32bit-1.1.28-16.1")) 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, "libxslt");
}