FFmpeg 1.2.1 libavcodec/imc.c 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 1.2.1 and classified as problematic. Affected by this issue is some unknown functionality of the file libavcodec/imc.c. Such manipulation leads to denial of service. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in FFmpeg 1.2.1 (Multimedia Processing Software). It has been rated as critical. Affected by this issue is an unknown code of the file libavcodec/imc.c. 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 issue has been introduced in 05/10/2013. The weakness was disclosed 07/09/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The public release has been coordinated in cooperation with the vendor. The attack may be launched remotely. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 60 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.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 (95145†). The entries VDB-9696, VDB-9695, VDB-9694 and VDB-9693 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Affected

FFmpeg
Libav

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

1.2.1

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

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

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

Physical: No
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.videolan.org

Timelineinfo

05/10/2013 🔍
07/09/2013 +60 days 🔍
07/09/2013 +0 days 🔍
07/24/2013 +15 days 🔍
04/15/2019 +2091 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: git.videolan.org
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-9692
OSVDB: 95145

See also: 🔍

Entryinfo

Created: 07/24/2013 16:07
Updated: 04/15/2019 16:11
Changes: 07/24/2013 16:07 (48), 04/15/2019 16:11 (2)
Complete: 🔍
Committer:
Cache ID: 216::103