Vulnerabilities > CVE-2013-7015 - Improper Input Validation vulnerability in Ffmpeg

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
ffmpeg
CWE-20
nessus
NVD
Published: 2013-12-09
Updated: 2016-12-03

Summary

The flashsv_decode_frame function in libavcodec/flashsv.c in FFmpeg before 2.1 does not properly validate a certain height value, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Flash Screen Video data.

Vulnerable Configurations

Part Description Count
Application
Ffmpeg
154

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201603-06.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201603-06 (FFmpeg: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in FFmpeg. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly execute arbitrary code or cause a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id89899
    published2016-03-14
    reporterThis script is Copyright (C) 2016 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/89899
    titleGLSA-201603-06 : FFmpeg: Multiple vulnerabilities
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201603-06.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(89899);
  script_version("$Revision: 2.1 $");
  script_cvs_date("$Date: 2016/03/14 14:55:46 $");

  script_cve_id("CVE-2013-0860", "CVE-2013-0861", "CVE-2013-0862", "CVE-2013-0863", "CVE-2013-0864", "CVE-2013-0865", "CVE-2013-0866", "CVE-2013-0867", "CVE-2013-0868", "CVE-2013-0872", "CVE-2013-0873", "CVE-2013-0874", "CVE-2013-0875", "CVE-2013-0876", "CVE-2013-0877", "CVE-2013-0878", "CVE-2013-4263", "CVE-2013-4264", "CVE-2013-4265", "CVE-2013-7008", "CVE-2013-7009", "CVE-2013-7010", "CVE-2013-7011", "CVE-2013-7012", "CVE-2013-7013", "CVE-2013-7014", "CVE-2013-7015", "CVE-2013-7016", "CVE-2013-7017", "CVE-2013-7018", "CVE-2013-7019", "CVE-2013-7020", "CVE-2013-7021", "CVE-2013-7022", "CVE-2013-7023", "CVE-2013-7024", "CVE-2014-2097", "CVE-2014-2098", "CVE-2014-2263", "CVE-2014-5271", "CVE-2014-5272", "CVE-2014-7937", "CVE-2014-8541", "CVE-2014-8542", "CVE-2014-8543", "CVE-2014-8544", "CVE-2014-8545", "CVE-2014-8546", "CVE-2014-8547", "CVE-2014-8548", "CVE-2014-8549", "CVE-2014-9316", "CVE-2014-9317", "CVE-2014-9318", "CVE-2014-9319", "CVE-2014-9602", "CVE-2014-9603", "CVE-2014-9604", "CVE-2015-3395");
  script_xref(name:"GLSA", value:"201603-06");

  script_name(english:"GLSA-201603-06 : FFmpeg: 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-201603-06
(FFmpeg: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in FFmpeg.  Please review
      the CVE identifiers referenced below for details.
  
Impact :

    A remote attacker could possibly execute arbitrary code or cause a
      Denial of Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201603-06"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All FFmpeg users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=media-video/ffmpeg-2.6.3'"
  );
  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:ffmpeg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/14");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016 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:"media-video/ffmpeg", unaffected:make_list("ge 2.6.3"), vulnerable:make_list("lt 2.6.3"))) 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, "FFmpeg");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2855.NASL
    descriptionSeveral security issues have been corrected in multiple demuxers and decoders of the libav multimedia library. The IDs mentioned above are just a portion of the security issues fixed in this update. A full list of the changes is available at http://git.libav.org/?p=libav.git;a=blob;f=Changelog;hb=refs/tags/v0.8 .10
    last seen2020-03-17
    modified2014-02-06
    plugin id72355
    published2014-02-06
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/72355
    titleDebian DSA-2855-1 : libav - several vulnerabilities
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2855. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(72355);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-3944", "CVE-2013-0845", "CVE-2013-0846", "CVE-2013-0849", "CVE-2013-0865", "CVE-2013-7010", "CVE-2013-7014", "CVE-2013-7015");
  script_bugtraq_id(51720, 57868, 63796, 63936);
  script_xref(name:"DSA", value:"2855");

  script_name(english:"Debian DSA-2855-1 : libav - several vulnerabilities");
  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 security issues have been corrected in multiple demuxers and
decoders of the libav multimedia library. The IDs mentioned above are
just a portion of the security issues fixed in this update. A full
list of the changes is available at
http://git.libav.org/?p=libav.git;a=blob;f=Changelog;hb=refs/tags/v0.8
.10"
  );
  # http://git.libav.org/?p=libav.git;a=blob;f=Changelog;hb=refs/tags/v0.8.10
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?df9bf7ae"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/libav"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2014/dsa-2855"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the libav packages.

For the stable distribution (wheezy), these problems have been fixed
in version 6:0.8.10-1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:libav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 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:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"ffmpeg-dbg", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"ffmpeg-doc", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-dbg", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-doc", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-extra-dbg", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libav-tools", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec-extra-53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavcodec53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice-extra-53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavdevice53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter-extra-2", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavfilter2", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat-extra-53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavformat53", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil-extra-51", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libavutil51", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc-extra-52", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libpostproc52", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale-dev", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale-extra-2", reference:"6:0.8.10-1")) flag++;
if (deb_check(release:"7.0", prefix:"libswscale2", reference:"6:0.8.10-1")) 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");

References