VDB-12096 · OSVDB 102673 · GCVE-100-12096

FFmpeg 2.1 libavcodec/h264.c decode_nal_units use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in FFmpeg 2.1. The impacted element is the function decode_nal_units of the file libavcodec/h264.c. The manipulation results in use after free. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in FFmpeg 2.1 (Multimedia Processing Software). Affected is the function decode_nal_units of the file libavcodec/h264.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The issue has been introduced in 10/29/2013. The weakness was released 01/18/2014 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as h264: reset ref count if decoding the slice header fails as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The public release was coordinated with the vendor. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 81 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.

The vulnerability is also documented in the vulnerability database at OSVDB (102673†). Entries connected to this vulnerability are available at VDB-12100, VDB-12099, VDB-12098 and VDB-12097. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • FFmpeg 2.1
  • Libav 0.8.9

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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.videolan.org

Timelineinfo

10/29/2013 🔍
01/18/2014 +81 days 🔍
01/18/2014 +0 days 🔍
01/31/2014 +13 days 🔍
04/18/2019 +1903 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: h264: reset ref count if decoding the slice header fails
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-12096
OSVDB: 102673

See also: 🔍

Entryinfo

Created: 01/31/2014 10:03
Updated: 04/18/2019 10:38
Changes: 01/31/2014 10:03 (51), 04/18/2019 10:38 (2)
Complete: 🔍
Cache ID: 216:D37:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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