OracleVM 3.2 : libxml2 (OVMSA-2016-0063)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2016-0063.
#

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

if (description)
{
  script_id(91745);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2014-3660");
  script_bugtraq_id(70644);

  script_name(english:"OracleVM 3.2 : libxml2 (OVMSA-2016-0063)");
  script_summary(english:"Checks the RPM output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - Add libxml2-enterprise.patch

  - Replaced doc/redhat.gif in tarball with updated image

  - CVE-2014-3660 denial of service via recursive entity
    expansion (rhbz#1161841)

  - fixed one regexp bug and added a (rhbz#922450)

  - Another small change on the algorithm for the
    elimination of epsilon (rhbz#922450)

  - detect and stop excessive entities expansion upon
    replacement (rhbz#912573)

  - fix validation issues with some XSD (rhbz#877348)

  - xmlDOMWrapCloneNode discards namespace of the node
    parameter (rhbz#884707)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2016-June/000484.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libxml2 / libxml2-python packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:oracle:vm:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:libxml2-python");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/22");
  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:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.2", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/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, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"OVS3.2", reference:"libxml2-2.6.26-2.1.25.0.1.el5_11")) flag++;
if (rpm_check(release:"OVS3.2", reference:"libxml2-python-2.6.26-2.1.25.0.1.el5_11")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libxml2 / libxml2-python");
}