VDB-11403 · OSVDB 100546 · GCVE-100-11403

FFmpeg 2.1 libavutil/log.c format_line memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg 2.1. It has been rated as critical. The impacted element is the function format_line of the file libavutil/log.c. Performing a manipulation results in memory corruption. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in FFmpeg 2.1 (Multimedia Processing Software). This affects the function format_line of the file libavutil/log.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The issue has been introduced in 10/29/2013. The weakness was presented 11/27/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avutil/log: check that len is within the buffer before reading it as confirmed git commit (GIT Repository). It is possible to read the advisory at git.videolan.org. The public release was coordinated in cooperation with the project team. The exploitability is told to be difficult. 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 29 days. During that time the estimated underground price was around $0-$5k.

Applying the patch Patchwork avutil/log: check that len is within the buffer before reading it is able to eliminate this problem. The bugfix is ready for download at patches.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 (100546†). See VDB-11404, VDB-11402, VDB-11401 and VDB-11400 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
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: Partially
Local: Yes
Remote: No

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: Patchwork avutil/log: check that len is within the buffer before reading it

Timelineinfo

10/29/2013 🔍
11/27/2013 +29 days 🔍
11/27/2013 +0 days 🔍
12/06/2013 +9 days 🔍
04/17/2019 +1958 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: avutil/log: check that len is within the buffer before reading it
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-11403
OSVDB: 100546

See also: 🔍

Entryinfo

Created: 12/06/2013 14:28
Updated: 04/17/2019 12:49
Changes: 12/06/2013 14:28 (52), 04/17/2019 12:49 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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