VDB-10278 · SA54857 · OSVDB 97322

FFmpeg 2.0 Missing FMT Chunk libavcodec/shorten.c decode_wave_header Remote Code Execution

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.
5.4	$0-$5k	0.00

A vulnerability classified as problematic has been found in FFmpeg 2.0 (Multimedia Processing Software). Affected is the function decode_wave_header of the file libavcodec/shorten.c of the component Missing FMT Chunk Handler. The impact remains unknown.

The issue has been introduced in 07/11/2013. The weakness was presented 09/12/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as shorten: Break out of loop looking for fmt chunk if none is found as confirmed git commit (GIT Repository). The advisory is available at git.libav.org. The public release was coordinated in cooperation with the vendor. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 63 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.

See 10267, 10268, 10269 and 10271 for similar entries.

Affected

FFmpeg 2.0
Libav 9.9

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

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

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

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 🔍
09/12/2013 +63 days 🔍
09/12/2013 +0 days 🔍
09/16/2013 +4 days 🔍
09/16/2013 +0 days 🔍
04/15/2019 +2037 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: shorten: Break out of loop looking for fmt chunk if none is found
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍
Secunia: 54857 - FFmpeg Multiple Vulnerabilities, Highly Critical
OSVDB: 97322

See also: 🔍

Entryinfo

Created: 09/16/2013 10:14
Updated: 04/15/2019 20:48
Changes: 09/16/2013 10:14 (56), 04/15/2019 20:48 (1)
Complete: 🔍