Vulnerabilities > CVE-2008-2935 - Improper Restriction of Operations Within the Bounds of A Memory Buffer 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 Red Hat Security Advisory RHSA-2008:0649 and 
# CentOS Errata and Security Advisory 2008:0649 respectively.
#

include("compat.inc");

if (description)
{
  script_id(43704);
  script_version("1.13");
  script_cvs_date("Date: 2019/10/25 13:36:04");

  script_cve_id("CVE-2008-2935");
  script_bugtraq_id(30467);
  script_xref(name:"RHSA", value:"2008:0649");

  script_name(english:"CentOS 4 / 5 : libxslt (CESA-2008:0649)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated libxslt packages that fix a security issue are now available
for Red Hat Enterprise Linux 4 and Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

libxslt is a library for transforming XML files into other XML files
using the standard XSLT stylesheet transformation mechanism.

A heap buffer overflow flaw was discovered in the RC4 libxslt library
extension. An attacker could create a malicious XSL file that would
cause a crash, or, possibly, execute arbitrary code with the
privileges of the application using the libxslt library to perform XSL
transformations on untrusted XSL style sheets. (CVE-2008-2935)

Red Hat would like to thank Chris Evans for reporting this
vulnerability.

All libxslt users are advised to upgrade to these updated packages,
which contain a backported patch to resolve this issue."
  );
  # https://lists.centos.org/pipermail/centos-announce/2008-July/015176.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ac975a3d"
  );
  # https://lists.centos.org/pipermail/centos-announce/2008-July/015177.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0a45cdd1"
  );
  # https://lists.centos.org/pipermail/centos-announce/2008-July/015178.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3a1f7086"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libxslt packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libxslt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libxslt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libxslt-python");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/07/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x / 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"libxslt-1.1.11-1.c4.2")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"libxslt-devel-1.1.11-1.c4.2")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"libxslt-python-1.1.11-1.c4.2")) flag++;

if (rpm_check(release:"CentOS-5", reference:"libxslt-1.1.17-2.el5_2.2")) flag++;
if (rpm_check(release:"CentOS-5", reference:"libxslt-devel-1.1.17-2.el5_2.2")) flag++;
if (rpm_check(release:"CentOS-5", reference:"libxslt-python-1.1.17-2.el5_2.2")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libxslt / libxslt-devel / libxslt-python");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update libxslt-5458.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(34077);
  script_version ("1.9");
  script_cvs_date("Date: 2019/10/25 13:36:32");

  script_cve_id("CVE-2008-2935");

  script_name(english:"openSUSE 10 Security Update : libxslt (libxslt-5458)");
  script_summary(english:"Check for the libxslt-5458 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A heap overflow in the RC4 cryptographic routines in libxslt was fixed
which could be used by attackers to potentially execute code.
(CVE-2008-2935)"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libxslt packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxslt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxslt-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxslt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxslt-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:10.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:10.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/07/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 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/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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, "openSUSE");
if (release !~ "^(SUSE10\.2|SUSE10\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "10.2 / 10.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE10.2", reference:"libxslt-1.1.17-27") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"libxslt-devel-1.1.17-27") ) flag++;
if ( rpm_check(release:"SUSE10.2", cpu:"x86_64", reference:"libxslt-32bit-1.1.17-27") ) flag++;
if ( rpm_check(release:"SUSE10.2", cpu:"x86_64", reference:"libxslt-devel-32bit-1.1.17-27") ) flag++;
if ( rpm_check(release:"SUSE10.3", reference:"libxslt-1.1.20-41.4") ) flag++;
if ( rpm_check(release:"SUSE10.3", reference:"libxslt-devel-1.1.20-41.4") ) flag++;
if ( rpm_check(release:"SUSE10.3", cpu:"x86_64", reference:"libxslt-32bit-1.1.20-41.4") ) flag++;
if ( rpm_check(release:"SUSE10.3", cpu:"x86_64", reference:"libxslt-devel-32bit-1.1.20-41.4") ) 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");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2008-7029.
#

include("compat.inc");

if (description)
{
  script_id(33843);
  script_version ("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:28");

  script_cve_id("CVE-2008-2935");
  script_bugtraq_id(30467);
  script_xref(name:"FEDORA", value:"2008-7029");

  script_name(english:"Fedora 8 : libxslt-1.1.24-2.fc8 (2008-7029)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"fix for CVE-2008-2935 problem in exslt rc4 crypto extensions

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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.redhat.com/show_bug.cgi?id=455848"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2008-August/013341.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e94e4810"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libxslt package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:ND");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:libxslt");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:8");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/08/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 8.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC8", reference:"libxslt-1.1.24-2.fc8")) 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");
}