VDB-11099 · OSVDB 99481

Ffmpeg/Libav 0.5.10/1.1 Channel Mapper libavcodec/ac3dec.c ac3_decode_frame denial of service

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CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Ffmpeg and Libav 0.5.10/1.1 (Multimedia Processing Software). This issue affects the function ac3_decode_frame of the file libavcodec/ac3dec.c of the component Channel Mapper. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability.

The weakness was shared 02/23/2013 by Justin Ruggles as Changelog for 0.8.9 as confirmed advisory (Website). It is possible to read the advisory at git.libav.org. The vendor cooperated in the coordination of the public release. Attacking locally is a requirement. A simple 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 T1499 according to MITRE ATT&CK.

Upgrading to version Libav 0.8.9 eliminates this vulnerability. The upgrade is hosted for download at libav.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.libav.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

git.libav.org is providing further details. The entries 11100 and 11122 are related to this item.

Productinfoedit

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Ffmpeg/Libav Libav 0.8.9
Patch: git.libav.org

Timelineinfoedit

02/23/2013 🔍
02/23/2013 +0 days 🔍
11/08/2013 +258 days 🔍
03/25/2019 +1963 days 🔍

Sourcesinfoedit

Advisory: Changelog for 0.8.9
Researcher: Justin Ruggles
Status: Confirmed
Coordinated: 🔍
OSVDB: 99481

Misc.: 🔍
See also: 🔍

Entryinfoedit

Created: 11/08/2013 02:27 PM
Updated: 03/25/2019 10:27 AM
Changes: (2) software_type vulnerability_cwe
Complete: 🔍

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