AIX 7.1 TL 3 : xorg (IV53246)

2014-02-05T00:00:00
ID AIX_IV53246.NASL
Type nessus
Reporter Tenable
Modified 2014-02-05T00:00:00

Description

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The text in the description was extracted from AIX Security
# Advisory xorg_advisory2.asc.
#

include("compat.inc");

if (description)
{
  script_id(72288);
  script_version("$Revision: 1.1 $");
  script_cvs_date("$Date: 2014/02/05 11:51:24 $");

  script_cve_id("CVE-2013-4396");

  script_name(english:"AIX 7.1 TL 3 : xorg (IV53246)");
  script_summary(english:"Check for APAR IV53246");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote AIX host is missing a security patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Use-after-free vulnerability in the doImageText function in
dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11
allows remote authenticated users to cause a denial of service (daemon
crash) or possibly execute arbitrary code via a crafted ImageText
request that triggers memory-allocation failure."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://aix.software.ibm.com/aix/efixes/security/xorg_advisory2.asc"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install the appropriate interim fix."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:aix:7.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/05");
  script_end_attributes();

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/AIX/lslpp", "Host/local_checks_enabled", "Host/AIX/version");

  exit(0);
}



include("audit.inc");
include("global_settings.inc");
include("aix.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if ( ! get_kb_item("Host/AIX/version") ) audit(AUDIT_OS_NOT, "AIX");
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);

if ( get_kb_item("Host/AIX/emgr_failure" ) ) exit(0, "This iFix check is disabled because : "+get_kb_item("Host/AIX/emgr_failure") );

flag = 0;

if (aix_check_ifix(release:"7.1", ml:"03", patch:"IV53246s0a", package:"X11.base.rte", minfilesetver:"7.1.3.0", maxfilesetver:"7.1.3.2") < 0) flag++;

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