VDB-10148 · OSVDB 96938 · GCVE-100-10148

FFmpeg 2.0 Bits Per Sample libavformat/4xm.c parse_strk denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in FFmpeg 2.0. The affected element is the function parse_strk of the file libavformat/4xm.c of the component Bits Per Sample Handler. Such manipulation leads to denial of service. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in FFmpeg 2.0 (Multimedia Processing Software) and classified as critical. Affected by this issue is the function parse_strk of the file libavformat/4xm.c of the component Bits Per Sample Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The issue has been introduced in 07/11/2013. The weakness was presented 09/02/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as 4xm: check that bits per sample is strictly positive as confirmed git commit (GIT Repository). The advisory is shared for download at git.libav.org. The public release was coordinated in cooperation with the vendor. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 53 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.libav.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (96938†). twitter.com is providing further details. See VDB-10143, VDB-10144, VDB-10145 and VDB-10146 for similar entries. Once again VulDB remains the best source for vulnerability data.

Affected

  • FFmpeg 2.0
  • Libav 0.8.8/9.8

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.libav.org

Timelineinfo

07/11/2013 🔍
09/02/2013 +53 days 🔍
09/02/2013 +0 days 🔍
09/09/2013 +7 days 🔍
08/21/2017 +1442 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 4xm: check that bits per sample is strictly positive
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10148
OSVDB: 96938

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/09/2013 14:14
Updated: 08/21/2017 08:44
Changes: 09/09/2013 14:14 (53), 08/21/2017 08:44 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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