FFmpeg 1.0 libavcodec/qdm2.c qdm2_decode_super_block input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in FFmpeg 1.0. This affects the function qdm2_decode_super_block of the file libavcodec/qdm2.c. Performing a manipulation results in input validation. This vulnerability is known as CVE-2013-0846. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in FFmpeg 1.0 (Multimedia Processing Software). This affects the function qdm2_decode_super_block of the file libavcodec/qdm2.c. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Array index error in the qdm2_decode_super_block function in libavcodec/qdm2.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via crafted QDM2 data, which triggers an out-of-bounds array access.

The issue has been introduced in 09/30/2012. The weakness was published 12/01/2012 by Mateusz Jurczyk and Gynvael Coldwind (j00ru) with Google Security Team as qdm2: check array index before use, fix out of array accesses as confirmed git commit (GIT Repository). The advisory is shared at git.videolan.org. The public release has been coordinated with the project team. This vulnerability is uniquely identified as CVE-2013-0846 since 01/07/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 62 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 72355 (Debian DSA-2855-1 : libav - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175271 (Debian Security Update for libav (DSA-2855-1)).

Upgrading to version 1.1 eliminates this vulnerability. The upgrade is hosted for download at git.videolan.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (89876), Tenable (72355), SecurityFocus (BID 63796†), OSVDB (94259†) and Vulnerability Center (SBV-44238†). Similar entries are available at VDB-7629, VDB-9154, VDB-9155 and VDB-9158. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 72355
Nessus Name: Debian DSA-2855-1 : libav - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702855
OpenVAS Name: Debian Security Advisory DSA 2855-1 (libav - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: FFmpeg 1.1
Patch: git.videolan.org

Timelineinfo

09/30/2012 🔍
12/01/2012 +62 days 🔍
12/01/2012 +0 days 🔍
12/12/2012 +11 days 🔍
12/12/2012 +0 days 🔍
01/07/2013 +26 days 🔍
06/17/2013 +161 days 🔍
12/07/2013 +173 days 🔍
04/24/2014 +138 days 🔍
05/17/2021 +2580 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: qdm2: check array index before use, fix out of array accesses
Researcher: Mateusz Jurczyk, Gynvael Coldwind (j00ru)
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-0846 (🔍)
GCVE (CVE): GCVE-0-2013-0846
GCVE (VulDB): GCVE-100-9165

OVAL: 🔍

X-Force: 89876
SecurityFocus: 63796 - FFmpeg and Libav Multiple Remote Security Vulnerabilities
OSVDB: 94259
Vulnerability Center: 44238 - FFmpeg <1.1 Unspecified Remote Vulnerability in qdm2.c, Critical

See also: 🔍

Entryinfo

Created: 06/17/2013 10:58
Updated: 05/17/2021 07:28
Changes: 06/17/2013 10:58 (83), 05/26/2017 03:49 (5), 05/17/2021 07:28 (3)
Complete: 🔍
Cache ID: 216:D61:103

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