VDB-10875 · OSVDB 98778 · GCVE-100-10875

FFmpeg 1.1 Block Size Signedness Comparison libavcodec/shorten.c shorten_decode_frame 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

Summaryinfo

A vulnerability marked as problematic has been reported in FFmpeg 1.1. The impacted element is the function shorten_decode_frame of the file libavcodec/shorten.c of the component Block Size Signedness Comparison Handler. Performing a manipulation results in an unknown weakness. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, was found in FFmpeg 1.1 (Multimedia Processing Software). This affects the function shorten_decode_frame of the file libavcodec/shorten.c of the component Block Size Signedness Comparison Handler. The impact remains unknown.

The issue has been introduced in 01/06/2013. The weakness was published 02/20/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as shorten: Fix signedness of comparission 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 45 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 (98778†). Similar entry is available at VDB-10876. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • FFmpeg 1.1
  • Libav 9.1

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
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

01/06/2013 🔍
02/20/2013 +45 days 🔍
02/20/2013 +0 days 🔍
10/23/2013 +245 days 🔍
04/15/2019 +2000 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: shorten: Fix signedness of comparission
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10875
OSVDB: 98778

See also: 🔍

Entryinfo

Created: 10/23/2013 14:26
Updated: 04/15/2019 10:38
Changes: 10/23/2013 14:26 (52), 04/15/2019 10:38 (1)
Complete: 🔍
Cache ID: 216::103

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

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