Vulnerabilities > CVE-2015-5479 - Numeric Errors vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(84815);
  script_version("2.4");
  script_cvs_date("Date: 2018/11/10 11:49:44");

  script_cve_id("CVE-2015-5479");

  script_name(english:"FreeBSD : libav -- divide by zero (a928960a-2bdc-11e5-86ff-14dae9d210b8)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Agostino Sarubbo reports :

libav: divide-by-zero in ff_h263_decode_mba()"
  );
  # https://blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c4044442"
  );
  # https://git.libav.org/?p=libav.git;a=commitdiff;h=0a49a62f998747cfa564d98d36a459fe70d3299b;hp=6f4cd33efb5a9ec75db1677d5f7846c60337129f
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?fc8e50ec"
  );
  # https://vuxml.freebsd.org/freebsd/a928960a-2bdc-11e5-86ff-14dae9d210b8.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ad4d8a41"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/06/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"libav<=11.3_2")) flag++;

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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2016-779.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(91870);
  script_version("2.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-5479", "CVE-2016-3062");

  script_name(english:"openSUSE Security Update : libav (openSUSE-2016-779)");
  script_summary(english:"Check for the openSUSE-2016-779 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for libav fixes the two following security issues :

  - CVE-2016-3062: A MP4 memory corruption was fixed that
    could lead to crashes or code execution. (boo#984487)

  - CVE-2015-5479: A crash due to a divide by zero was fixed
    in ff_h263_decode_mba() that could lead to decoder
    crashes. (boo#949760)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=949760"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=984487"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libav packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libav-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libav-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libav-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec-libav56");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec-libav56-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice-libav55");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice-libav55-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter-libav5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter-libav5-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat-libav56");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat-libav56-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample-libav2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample-libav2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil-libav54");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil-libav54-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale-libav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale-libav3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale-libav3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.1", reference:"libav-debugsource-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libav-tools-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libav-tools-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavcodec-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavcodec-libav56-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavcodec-libav56-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavdevice-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavdevice-libav55-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavdevice-libav55-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavfilter-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavfilter-libav5-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavfilter-libav5-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavformat-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavformat-libav56-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavformat-libav56-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavresample-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavresample-libav2-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavresample-libav2-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavutil-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavutil-libav54-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libavutil-libav54-debuginfo-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libswscale-libav-devel-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libswscale-libav3-11.4-5.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libswscale-libav3-debuginfo-11.4-5.1") ) 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, "libav-debugsource / libav-tools / libav-tools-debuginfo / etc");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-644-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(93847);
  script_version("2.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2015-1872", "CVE-2015-5479", "CVE-2016-7393");
  script_bugtraq_id(72644, 75932);

  script_name(english:"Debian DLA-644-1 : libav 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:
"Multiple vulnerabilities have been found in libav :

CVE-2015-1872

The ff_mjpeg_decode_sof function in libavcodec/mjpegdec.c in Libav
before 0.8.18 does not validate the number of components in a JPEG-LS
Start Of Frame segment, which allows remote attackers to cause a
denial of service (out-of-bounds array access) or possibly have
unspecified other impact via crafted Motion JPEG data.

CVE-2015-5479

The ff_h263_decode_mba function in libavcodec/ituh263dec.c in Libav
before 11.5 allows remote attackers to cause a denial of service
(divide-by-zero error and application crash) via a file with crafted
dimensions.

CVE-2016-7393

The aac_sync function in libavcodec/aac_parser.c in Libav before 11.5
is vulnerable to a stack-based buffer overflow.

For Debian 7 'Wheezy', these problems have been fixed in version
6:0.8.18-0+deb7u1.

We recommend that you upgrade your libav packages.

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/2016/10/msg00000.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/libav"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:ffmpeg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ffmpeg-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ffmpeg-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libav-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libav-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libav-extra-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libav-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavcodec-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavcodec-extra-53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavcodec53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavdevice-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavdevice-extra-53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavdevice53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavfilter-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavfilter-extra-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavfilter2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavformat-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavformat-extra-53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavformat53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavutil-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavutil-extra-51");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavutil51");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpostproc-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpostproc-extra-52");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpostproc52");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libswscale-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libswscale-extra-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libswscale2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"ffmpeg", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ffmpeg-dbg", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ffmpeg-doc", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-dbg", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-doc", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-extra-dbg", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-tools", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec-extra-53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice-extra-53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter-extra-2", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter2", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat-extra-53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat53", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil-extra-51", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil51", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc-extra-52", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc52", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale-dev", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale-extra-2", reference:"6:0.8.18-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale2", reference:"6:0.8.18-0+deb7u1")) flag++;

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

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2944-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(90349);
  script_version("2.8");
  script_cvs_date("Date: 2019/09/18 12:31:45");

  script_cve_id("CVE-2014-8541", "CVE-2015-1872", "CVE-2015-3395", "CVE-2015-5479", "CVE-2015-6818", "CVE-2015-6820", "CVE-2015-6824", "CVE-2015-6826", "CVE-2015-8364", "CVE-2015-8365", "CVE-2016-1897", "CVE-2016-1898", "CVE-2016-2326", "CVE-2016-2330");
  script_xref(name:"USN", value:"2944-1");

  script_name(english:"Ubuntu 12.04 LTS : libav vulnerabilities (USN-2944-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that Libav incorrectly handled certain malformed
media files. If a user were tricked into opening a crafted media file,
an attacker could cause a denial of service via application crash, or
possibly execute arbitrary code with the privileges of the user
invoking the program.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/2944-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libavcodec53 and / or libavformat53 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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:canonical:ubuntu_linux:libavcodec53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libavformat53");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/11/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/04/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/05");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(12\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"12.04", pkgname:"libavcodec53", pkgver:"4:0.8.17-0ubuntu0.12.04.2")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libavformat53", pkgver:"4:0.8.17-0ubuntu0.12.04.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libavcodec53 / libavformat53");
}