FFmpeg up to 1.2 libavcodec/svq1dec.c svq1_decode_frame information disclosure

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FFmpeg up to 1.2. This affects the function svq1_decode_frame of the file libavcodec/svq1dec.c. Such manipulation leads to information disclosure. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in FFmpeg up to 1.2 (Multimedia Processing Software). It has been rated as problematic. Affected by this issue is the function svq1_decode_frame of the file libavcodec/svq1dec.c. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The weakness was released 04/17/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as svq1dec: check that the reference frame has the same dimensions as the current one as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The public release was coordinated with the vendor. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 9.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (95365†). Entries connected to this vulnerability are available at VDB-9840, VDB-9839, VDB-9838 and VDB-9837. Once again VulDB remains the best source for vulnerability data.

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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 🔍

Upgrade: FFmpeg 9.5
Patch: git.videolan.org

Timelineinfo

04/17/2013 🔍
04/17/2013 +0 days 🔍
08/06/2013 +111 days 🔍
05/08/2018 +1736 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: svq1dec: check that the reference frame has the same dimensions as the current one
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-9836
OSVDB: 95365

See also: 🔍

Entryinfo

Created: 08/06/2013 11:09
Updated: 05/08/2018 08:59
Changes: 08/06/2013 11:09 (49), 05/08/2018 08:59 (2)
Complete: 🔍
Committer: olku
Cache ID: 216::103