Debian DLA-199-1 : libx11 security update

2015-04-15T00:00:00
ID DEBIAN_DLA-199.NASL
Type nessus
Reporter Tenable
Modified 2018-07-06T00:00:00

Description

Abhishek Arya discovered a buffer overflow in the MakeBigReq macro provided by libx11, which could result in denial of service or the execution of arbitrary code.

Several other xorg packages (e.g. libxrender) will be recompiled against the fixed package after the release of this update. For detailed information on the status of recompiled packages please refer to the Debian Security Tracker at https://security-tracker.debian.org/tracker/CVE-2013-7439

For the oldstable distribution (squeeze), this problem has been fixed in version 2:1.3.3-4+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in version 2:1.5.0-1+deb7u2.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-199-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(82785);
  script_version("1.7");
  script_cvs_date("Date: 2018/07/06 11:26:06");

  script_cve_id("CVE-2013-7439");
  script_bugtraq_id(73962);

  script_name(english:"Debian DLA-199-1 : libx11 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Abhishek Arya discovered a buffer overflow in the MakeBigReq macro
provided by libx11, which could result in denial of service or the
execution of arbitrary code.

Several other xorg packages (e.g. libxrender) will be recompiled
against the fixed package after the release of this update. For
detailed information on the status of recompiled packages please refer
to the Debian Security Tracker at
https://security-tracker.debian.org/tracker/CVE-2013-7439

For the oldstable distribution (squeeze), this problem has been fixed
in version 2:1.3.3-4+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in
version 2:1.5.0-1+deb7u2.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2015/04/msg00012.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/libx11"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-7439"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected 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: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:debian:debian_linux:libx11-6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-6-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-6-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-xcb-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-xcb1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libx11-xcb1-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libx11-6", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-6-dbg", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-6-udeb", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-data", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-dev", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-xcb-dev", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-xcb1", reference:"2:1.3.3-4+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libx11-xcb1-dbg", reference:"2:1.3.3-4+squeeze2")) flag++;

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