VDB-11099 · OSVDB 99481 · GCVE-100-11099

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

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Ffmpeg and Libav 0.5.10/1.1. Affected by this vulnerability is the function ac3_decode_frame of the file libavcodec/ac3dec.c of the component Channel Mapper. The manipulation leads to denial of service. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

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. The product does not release or incorrectly releases a resource before it is made available for re-use. 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. Technical details of the vulnerability are known, but there is no available exploit.

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.

The vulnerability is also documented in the vulnerability database at OSVDB (99481†). git.libav.org is providing further details. The entries VDB-11100 and VDB-11122 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

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

Timelineinfo

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

Sourcesinfo

Product: ffmpeg.org

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

GCVE (VulDB): GCVE-100-11099
OSVDB: 99481

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/08/2013 14:27
Updated: 03/25/2019 10:27
Changes: 11/08/2013 14:27 (51), 03/25/2019 10:27 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!