VDB-10143 · OSVDB 96933 · GCVE-100-10143

FFmpeg 2.0 libavcodec/vcr1.c privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg 2.0. It has been rated as problematic. Affected by this issue is some unknown functionality in the library vcr1_decode_frame of the file libavcodec/vcr1.c. Performing a manipulation results in privileges management. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in FFmpeg 2.0 (Multimedia Processing Software). This affects an unknown function in the library vcr1_decode_frame of the file libavcodec/vcr1.c. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, and integrity.

The issue has been introduced in 07/11/2013. The weakness was presented 09/02/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as vcr1: add sanity checks as confirmed git commit (GIT Repository). It is possible to read the advisory at git.libav.org. The public release was coordinated in cooperation 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 attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 53 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.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 (96933†). Further details are available at twitter.com. See VDB-10144, VDB-10145, VDB-10146 and VDB-10147 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • FFmpeg 2.0
  • Libav 0.8.8/9.8

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
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: Privileges management
CWE: CWE-269 / CWE-266
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.libav.org

Timelineinfo

07/11/2013 🔍
09/02/2013 +53 days 🔍
09/02/2013 +0 days 🔍
09/09/2013 +7 days 🔍
08/21/2017 +1442 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: vcr1: add sanity checks
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10143
OSVDB: 96933

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/09/2013 14:14
Updated: 08/21/2017 08:44
Changes: 09/09/2013 14:14 (52), 08/21/2017 08:44 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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