FFmpeg up to 1.2 libavcodec/h264_cavlc.c decode_residual Local Privilege Escalation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FFmpeg up to 1.2. Affected by this vulnerability is the function decode_residual of the file libavcodec/h264_cavlc.c. Executing a manipulation can lead to an unknown weakness. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in FFmpeg up to 1.2 (Multimedia Processing Software) and classified as problematic. This vulnerability affects the function decode_residual of the file libavcodec/h264_cavlc.c. The impact remains unknown.

The weakness was shared 03/28/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The vendor cooperated in the coordination of the public release. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.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 (95347†). The entries VDB-9728, VDB-9727, VDB-9726 and VDB-9725 are related to this item. Once again VulDB remains the best source for vulnerability data.

Affected

FFmpeg
Libav

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

Website

Product: https://ffmpeg.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.videolan.org

Timelineinfo

03/28/2013 🔍
03/28/2013 +0 days 🔍
07/26/2013 +120 days 🔍
05/08/2018 +1747 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: git.videolan.org
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-9724
OSVDB: 95347

See also: 🔍

Entryinfo

Created: 07/26/2013 12:05
Updated: 05/08/2018 08:53
Changes: 07/26/2013 12:05 (47), 05/08/2018 08:53 (1)
Complete: 🔍
Committer:
Cache ID: 216::103