Vulnerabilities > CVE-2013-4520 - Unspecified vulnerability in Xmlsoft Libxslt

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from SuSE 11 update information. The text itself is
# copyright (C) Novell, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(70843);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2011-3970", "CVE-2012-2825", "CVE-2012-6139", "CVE-2013-4520");

  script_name(english:"SuSE 11.2 / 11.3 Security Update : libxslt (SAT Patch Numbers 8500 / 8501)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 11 host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"libxslt received a security update to fix a security issue :

  - The XSL implementation in libxslt allowed remote
    attackers to cause a denial of service (crash) via an
    invalid DTD. (addendum due to incomplete fix for
    CVE-2012-2825). (CVE-2013-4520)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=849019"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-3970.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-2825.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-6139.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4520.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Apply SAT patch number 8500 / 8501 as appropriate."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:libxslt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:libxslt-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/11/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/11/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 Tenable Network Security, Inc.");
  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)11") audit(AUDIT_OS_NOT, "SuSE 11");
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 11", cpu);


flag = 0;
if (rpm_check(release:"SLED11", sp:2, cpu:"i586", reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:2, cpu:"x86_64", reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:2, cpu:"x86_64", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:2, reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:2, cpu:"s390x", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:2, cpu:"x86_64", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, reference:"libxslt-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"s390x", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"libxslt-32bit-1.1.24-19.23.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201401-07.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(71907);
  script_version("1.5");
  script_cvs_date("Date: 2018/07/12 19:01:15");

  script_cve_id("CVE-2012-2870", "CVE-2012-2893", "CVE-2012-6139", "CVE-2013-4520");
  script_bugtraq_id(55331, 55676, 58685, 63548);
  script_xref(name:"GLSA", value:"201401-07");

  script_name(english:"GLSA-201401-07 : libxslt: Denial of Service");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201401-07
(libxslt: Denial of Service)

    Multiple vulnerabilities have been found in libxslt:
      Multiple errors exist in pattern.c and functions.c (CVE-2012-2870,
        CVE-2012-6139).
      A double-free error exists in templates.c (CVE-2012-2893).
      A NULL pointer dereference in keys.c (CVE-2012-6139).
      An error in handling stylesheets containing DTDs (CVE-2013-4520).
  
Impact :

    A remote attacker could entice a user to process a specially crafted
      file in an application linked against libxslt, possibly resulting in a
      Denial of Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201401-07"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All libxslt users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=dev-libs/libxslt-1.1.28'
    Packages which depend on this library may need to be recompiled. Tools
      such as revdep-rebuild may assist in identifying some of these packages."
  );
  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_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:gentoo:linux:libxslt");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"dev-libs/libxslt", unaffected:make_list("ge 1.1.28"), vulnerable:make_list("lt 1.1.28"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libxslt");
}