FFmpeg up to 1.2.1 libavcodec/vorbisdec.c vorbis_parse_setup_hdr_codebooks 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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in FFmpeg up to 1.2.1 and classified as problematic. Affected by this issue is the function vorbis_parse_setup_hdr_codebooks of the file libavcodec/vorbisdec.c. The manipulation results in denial of service. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in FFmpeg up to 1.2.1 (Multimedia Processing Software). It has been classified as critical. Affected is the function vorbis_parse_setup_hdr_codebooks of the file libavcodec/vorbisdec.c. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was shared 05/13/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as vorbisdec: check codebook entry count as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The vendor cooperated in the coordination of the public release. The attack needs to be initiated within the local network. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

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 (94943†). The entries VDB-9388, VDB-9387, VDB-9386 and VDB-9385 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

FFmpeg
Libav

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

Website

Product: https://ffmpeg.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

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

0-Day	Unlock	Unlock	Unlock	Unlock
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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

05/13/2013 🔍
05/13/2013 +0 days 🔍
07/10/2013 +58 days 🔍
08/21/2017 +1503 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: vorbisdec: check codebook entry count
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-9384
OSVDB: 94943

See also: 🔍

Entryinfo

Created: 07/10/2013 13:06
Updated: 08/21/2017 08:43
Changes: 07/10/2013 13:06 (49), 08/21/2017 08:43 (2)
Complete: 🔍
Committer: olku
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.