VDB-11655 · OSVDB 101474

FFmpeg 2.1 libavcodec/vc1dec.c ff_vc1_decode_init_alloc_tables Remote Code Execution

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

A vulnerability classified as problematic has been found in FFmpeg 2.1 (Multimedia Processing Software). This affects the function ff_vc1_decode_init_alloc_tables of the file libavcodec/vc1dec.c. The impact remains unknown.

The issue has been introduced in 10/29/2013. The weakness was published 12/17/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avcodec/vc1dec: use av_mallocz for luma_mv as confirmed git commit (GIT Repository). It is possible to read the advisory at git.videolan.org. The public release has been coordinated with the project team. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 49 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.videolan.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

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.videolan.org

Timelineinfo

10/29/2013 🔍
12/17/2013 +49 days 🔍
12/17/2013 +0 days 🔍
12/30/2013 +13 days 🔍
04/17/2019 +1934 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: avcodec/vc1dec: use av_mallocz for luma_mv
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍
OSVDB: 101474

Entryinfo

Created: 12/30/2013 11:05
Updated: 04/17/2019 16:21
Changes: 12/30/2013 11:05 (50), 04/17/2019 16:21 (1)
Complete: 🔍
Cache ID: 3:918:103

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