FFmpeg decode_channel_residues. memory corruption

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.
10.0$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg. It has been rated as critical. The impacted element is the function decode_channel_residues.. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2012-2795. There is no available exploit.

Detailsinfo

A vulnerability was found in FFmpeg (Multimedia Processing Software) (version unknown). It has been classified as very critical. This affects the function decode_channel_residues.. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple unspecified vulnerabilities in libavcodec/wmalosslessdec.c in FFmpeg before 0.11 have unknown impact and attack vectors related to (1) size of "mclms arrays," (2) "a get_bits(0) in decode_ac_filter," and (3) "too many bits in decode_channel_residues()."

The weakness was presented 09/10/2012 (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2012-2795. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/13/2021).

The vulnerability scanner Nessus provides a plugin with the ID 76437 (Mandriva Linux Security Advisory : ffmpeg (MDVSA-2014:129)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (78500), Tenable (76437), SecurityFocus (BID 55355†), Secunia (SA36760†) and Vulnerability Center (SBV-44231†). See VDB-5510, VDB-9123, VDB-9124 and VDB-9125 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 76437
Nessus Name: Mandriva Linux Security Advisory : ffmpeg (MDVSA-2014:129)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 2a7063de547b1d8fb1cef523469390fb59fb2c50

Timelineinfo

09/16/2009 🔍
05/19/2012 +975 days 🔍
06/07/2012 +19 days 🔍
08/30/2012 +84 days 🔍
09/10/2012 +11 days 🔍
09/10/2012 +0 days 🔍
04/24/2014 +591 days 🔍
07/10/2014 +77 days 🔍
03/24/2015 +257 days 🔍
12/13/2021 +2456 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-2795 (🔍)
GCVE (CVE): GCVE-0-2012-2795
GCVE (VulDB): GCVE-100-62223
X-Force: 78500
SecurityFocus: 55355 - FFmpeg Multiple Unspecified Vulnerabilities
Secunia: 36760 - FFmpeg "vmd_read_header()" Integer Overflow Vulnerability, Moderately Critical
Vulnerability Center: 44231 - FFmpeg <0.11 Unspecified Remote Vulnerability in wmalosslessdec.c, Critical

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/13/2021 16:06
Changes: 03/24/2015 12:22 (62), 05/26/2017 03:45 (5), 12/13/2021 16:00 (4), 12/13/2021 16:06 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!