CVE-2012-2775: Critical severity Libav Libav vulnerability

Q: What is the severity of CVE-2012-2775?

The severity of CVE-2012-2775 has not been specified, but it involves an out-of-bounds write potential which could lead to undefined behavior.

Q: How do I fix CVE-2012-2775?

To fix CVE-2012-2775, you should update FFmpeg to version 0.11 or later, or Libav to versions 0.7.7 or 0.8.4 and later.

Q: In which software is CVE-2012-2775 found?

CVE-2012-2775 is found in FFmpeg versions before 0.11 and Libav versions 0.7.x before 0.7.7 and 0.8.x before 0.8.4.

Q: What are the potential impacts of CVE-2012-2775?

The potential impacts of CVE-2012-2775 include crashes, data corruption, and possibly remote code execution due to out-of-bounds writes.

Q: Is there a working exploit for CVE-2012-2775?

As of the last reports, there is no publicly known exploit for CVE-2012-2775, but the vulnerability could be leveraged given its nature.

Published Sep 10, 2012

Updated

Unspecified vulnerability in the readvarblockdata function in libavcodec/alsdec.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4, has unknown impact and attack vectors, related to a large order and an "out of array write in quantcof."

Affected Software

68 affected components

Libav Libav=0.8

Libav Libav=0.8-beta2

Libav Libav=0.8.1

Libav Libav=0.8.2

Libav Libav=0.8.3

Libav Libav=0.7

Libav Libav=0.7-beta1

Libav Libav=0.7-beta2

Libav Libav=0.7.1

Libav Libav=0.7.2

Libav Libav=0.7.3

Libav Libav=0.7.4

Libav Libav=0.7.5

Libav Libav=0.7.6

FFmpeg FFmpeg<=0.10.4

FFmpeg FFmpeg=0.3

FFmpeg FFmpeg=0.3.1

FFmpeg FFmpeg=0.3.2

FFmpeg FFmpeg=0.3.3

FFmpeg FFmpeg=0.3.4

FFmpeg FFmpeg=0.4.0

FFmpeg FFmpeg=0.4.2

FFmpeg FFmpeg=0.4.3

FFmpeg FFmpeg=0.4.4

FFmpeg FFmpeg=0.4.5

FFmpeg FFmpeg=0.4.6

FFmpeg FFmpeg=0.4.7

FFmpeg FFmpeg=0.4.8

FFmpeg FFmpeg=0.4.9

FFmpeg FFmpeg=0.4.9-pre1

FFmpeg FFmpeg=0.5

FFmpeg FFmpeg=0.5.1

FFmpeg FFmpeg=0.5.2

FFmpeg FFmpeg=0.5.3

FFmpeg FFmpeg=0.5.4

FFmpeg FFmpeg=0.5.4.5

FFmpeg FFmpeg=0.5.4.6

FFmpeg FFmpeg=0.6

FFmpeg FFmpeg=0.6.1

FFmpeg FFmpeg=0.6.2

FFmpeg FFmpeg=0.6.3

FFmpeg FFmpeg=0.7

FFmpeg FFmpeg=0.7.1

FFmpeg FFmpeg=0.7.2

FFmpeg FFmpeg=0.7.3

FFmpeg FFmpeg=0.7.4

FFmpeg FFmpeg=0.7.5

FFmpeg FFmpeg=0.7.6

FFmpeg FFmpeg=0.7.7

FFmpeg FFmpeg=0.7.8

FFmpeg FFmpeg=0.7.9

FFmpeg FFmpeg=0.7.11

FFmpeg FFmpeg=0.7.12

FFmpeg FFmpeg=0.8.0

FFmpeg FFmpeg=0.8.1

FFmpeg FFmpeg=0.8.2

FFmpeg FFmpeg=0.8.5

FFmpeg FFmpeg=0.8.5.3

FFmpeg FFmpeg=0.8.5.4

FFmpeg FFmpeg=0.8.6

FFmpeg FFmpeg=0.8.7

FFmpeg FFmpeg=0.8.8

FFmpeg FFmpeg=0.8.10

FFmpeg FFmpeg=0.8.11

FFmpeg FFmpeg=0.9

FFmpeg FFmpeg=0.9.1

FFmpeg FFmpeg=0.10

FFmpeg FFmpeg=0.10.3

Event History

Sep 10, 2012

CVE Published

via MITRE·10:00 PM

Data Sourced

via MITRE·10:00 PM

Description

Frequently Asked Questions

What is the severity of CVE-2012-2775?

The severity of CVE-2012-2775 has not been specified, but it involves an out-of-bounds write potential which could lead to undefined behavior.

How do I fix CVE-2012-2775?

To fix CVE-2012-2775, you should update FFmpeg to version 0.11 or later, or Libav to versions 0.7.7 or 0.8.4 and later.

In which software is CVE-2012-2775 found?