VDB-12098 · OSVDB 102675 · GCVE-100-12098

FFmpeg 2.1 libavcodec/h264.c ff_h264_check_intra_pred_mode memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in FFmpeg 2.1. This impacts the function ff_h264_check_intra_pred_mode of the file libavcodec/h264.c. Such manipulation leads to memory corruption. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in FFmpeg 2.1 (Multimedia Processing Software). Affected by this issue is the function ff_h264_check_intra_pred_mode of the file libavcodec/h264.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The issue has been introduced in 10/29/2013. The weakness was presented 01/18/2014 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as h264: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3 as confirmed git commit (GIT Repository). The advisory is available at git.videolan.org. The public release was coordinated in cooperation with the vendor. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/18/2019).

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 (102675†). See VDB-12102, VDB-12101, VDB-12100 and VDB-12099 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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: Memory corruption
CWE: 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: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-12098
OSVDB: 102675

See also: 🔍

Entryinfo

Created: 01/31/2014 10:03
Updated: 04/18/2019 10:51
Changes: 01/31/2014 10:03 (50), 04/18/2019 10:51 (2)
Complete: 🔍
Cache ID: 216:446:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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