Debian DSA-3430-1 : libxml2 - security update

2015-12-29T00:00:00
ID DEBIAN_DSA-3430.NASL
Type nessus
Reporter Tenable
Modified 2016-12-06T00:00:00

Description

Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or crash the application.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3430. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(87608);
  script_version("$Revision: 2.9 $");
  script_cvs_date("$Date: 2016/12/06 20:25:08 $");

  script_cve_id("CVE-2015-1819", "CVE-2015-5312", "CVE-2015-7497", "CVE-2015-7498", "CVE-2015-7499", "CVE-2015-7500", "CVE-2015-7941", "CVE-2015-7942", "CVE-2015-8035", "CVE-2015-8241", "CVE-2015-8317", "CVE-2015-8710");
  script_osvdb_id(120600, 121175, 129696, 130435, 130535, 130536, 130538, 130539, 130543, 130641, 130642);
  script_xref(name:"DSA", value:"3430");

  script_name(english:"Debian DSA-3430-1 : libxml2 - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities were discovered in libxml2, a library
providing support to read, modify and write XML and HTML files. A
remote attacker could provide a specially crafted XML or HTML file
that, when processed by an application using libxml2, would cause that
application to use an excessive amount of CPU, leak potentially
sensitive information, or crash the application."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782782"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782985"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783010"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802827"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=803942"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=806384"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/libxml2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/libxml2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2015/dsa-3430"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the libxml2 packages.

For the oldstable distribution (wheezy), these problems have been
fixed in version 2.8.0+dfsg1-7+wheezy5.

For the stable distribution (jessie), these problems have been fixed
in version 2.9.1+dfsg1-5+deb8u1."
  );
  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:POC/RL:OF/RC:ND");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2016 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:"7.0", prefix:"libxml2", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"libxml2-dbg", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"libxml2-dev", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"libxml2-doc", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"libxml2-utils", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"libxml2-utils-dbg", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"python-libxml2", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"7.0", prefix:"python-libxml2-dbg", reference:"2.8.0+dfsg1-7+wheezy5")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-dbg", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-dev", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-doc", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-utils", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-utils-dbg", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"python-libxml2", reference:"2.9.1+dfsg1-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"python-libxml2-dbg", reference:"2.9.1+dfsg1-5+deb8u1")) 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");