Oracle Linux 3 / 4 / 5 : libxml2 (ELSA-2008-0884)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2008:0884 and 
# Oracle Linux Security Advisory ELSA-2008-0884 respectively.
#

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

if (description)
{
  script_id(67746);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2008-3529");
  script_xref(name:"RHSA", value:"2008:0884");

  script_name(english:"Oracle Linux 3 / 4 / 5 : libxml2 (ELSA-2008-0884)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2008:0884 :

Updated libxml2 packages that fix a security issue are now available
for Red Hat Enterprise Linux 3, 4, and 5.

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

The libxml2 packages provide a library that allows you to manipulate
XML files. It includes support to read, modify, and write XML and HTML
files.

A heap-based buffer overflow flaw was found in the way libxml2 handled
long XML entity names. If an application linked against libxml2
processed untrusted malformed XML content, it could cause the
application to crash or, possibly, execute arbitrary code.
(CVE-2008-3529)

All users of libxml2 are advised to upgrade to these updated packages,
which contain a backported patch to resolve this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2008-September/000732.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2008-September/000733.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2008-September/000734.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libxml2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libxml2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libxml2-python");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/09/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(3|4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 3 / 4 / 5", "Oracle Linux " + 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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL3", cpu:"i386", reference:"libxml2-2.5.10-13.0.1")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"libxml2-2.5.10-13.0.1")) flag++;
if (rpm_check(release:"EL3", cpu:"i386", reference:"libxml2-devel-2.5.10-13.0.1")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"libxml2-devel-2.5.10-13.0.1")) flag++;
if (rpm_check(release:"EL3", cpu:"i386", reference:"libxml2-python-2.5.10-13.0.1")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"libxml2-python-2.5.10-13.0.1")) flag++;

if (rpm_check(release:"EL4", reference:"libxml2-2.6.16-12.5.0.1")) flag++;
if (rpm_check(release:"EL4", reference:"libxml2-devel-2.6.16-12.5.0.1")) flag++;
if (rpm_check(release:"EL4", reference:"libxml2-python-2.6.16-12.5.0.1")) flag++;

if (rpm_check(release:"EL5", reference:"libxml2-2.6.26-2.1.2.6.0.1")) flag++;
if (rpm_check(release:"EL5", reference:"libxml2-devel-2.6.26-2.1.2.6.0.1")) flag++;
if (rpm_check(release:"EL5", reference:"libxml2-python-2.6.26-2.1.2.6.0.1")) 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, "libxml2 / libxml2-devel / libxml2-python");
}