GLSA-200701-25 : X.Org X server: Multiple vulnerabilities

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200701-25.
#
# 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('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(24310);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2006-6101", "CVE-2006-6102", "CVE-2006-6103");
  script_xref(name:"GLSA", value:"200701-25");

  script_name(english:"GLSA-200701-25 : X.Org X server: Multiple vulnerabilities");
  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-200701-25
(X.Org X server: Multiple vulnerabilities)

    Multiple memory corruption vulnerabilities have been found in the
    ProcDbeGetVisualInfo() and the ProcDbeSwapBuffers() of the DBE
    extension, and ProcRenderAddGlyphs() in the Render extension.
  
Impact :

    A local attacker could execute arbitrary code with the privileges of
    the user running the X server, typically root.
  
Workaround :

    Disable the DBE extension by removing the 'Load dbe' directive in the
    Module section of xorg.conf, and explicitly disable the Render
    extension with ' Option 'RENDER' 'disable' ' in the Extensions section.
    Note: This could affect the functionality of some applications."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200701-25"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All X.Org X server users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=x11-base/xorg-server-1.1.1-r4'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xorg-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/01/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/02/09");
  script_set_attribute(attribute:"vuln_publication_date", value:"2007/01/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2021 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:"x11-base/xorg-server", unaffected:make_list("ge 1.1.1-r4"), vulnerable:make_list("lt 1.1.1-r4"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "X.Org X server");
}