VDB-10877 · OSVDB 98780 · GCVE-100-10877

FFmpeg 1.1 libavcodec/cook.c cook_decode_init js_subband_start 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 classified as critical has been found in FFmpeg 1.1. This impacts the function cook_decode_init of the file libavcodec/cook.c. The manipulation of the argument js_subband_start leads to memory corruption. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in FFmpeg 1.1 (Multimedia Processing Software) and classified as very critical. This issue affects the function cook_decode_init of the file libavcodec/cook.c. The manipulation of the argument js_subband_start 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 01/06/2013. The weakness was disclosed 02/20/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as cook: check js_subband_start for validity as confirmed git commit (GIT Repository). The advisory is shared at git.videolan.org. The public release has been coordinated in cooperation with the project team. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/15/2019).

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 (98780†). The entries VDB-10881, VDB-10880, VDB-10879 and VDB-10878 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 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

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: cook: check js_subband_start for validity
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10877
OSVDB: 98780

See also: 🔍

Entryinfo

Created: 10/23/2013 14:26
Updated: 04/15/2019 10:52
Changes: 10/23/2013 14:26 (51), 04/15/2019 10:52 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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