CVE-2011-3947: Buffer Overflow

Published Aug 20, 2012

Updated

Buffer overflow in mjpegbdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted MJPEG-B file.

Affected Software

33 affected components

FFmpeg FFmpeg=0.7.7

FFmpeg FFmpeg=0.7.1

FFmpeg FFmpeg=0.7.6

FFmpeg FFmpeg=0.7.8

FFmpeg FFmpeg=0.7.9

FFmpeg FFmpeg=0.7.11

FFmpeg FFmpeg=0.7.2

FFmpeg FFmpeg=0.8.6

FFmpeg FFmpeg=0.8.5

FFmpeg FFmpeg=0.8.10

FFmpeg FFmpeg=0.8.7

FFmpeg FFmpeg=0.8.8

Libav Libav=0.5.6

Libav Libav=0.5.7

Libav Libav=0.5.3

Libav Libav=0.5

Libav Libav=0.5.2

Libav Libav=0.5.5

Libav Libav=0.5.4

Libav Libav=0.5.1

Libav Libav=0.6.5

Libav Libav=0.6.2

Libav Libav=0.6.4

Libav Libav=0.6.3

Libav Libav=0.6.1

Libav Libav=0.6

Libav Libav=0.7

Libav Libav=0.7.4

Libav Libav=0.7.1

Libav Libav=0.7.2

Libav Libav=0.7.3

Libav Libav=0.8

Libav Libav=0.8-beta2

Event History

Aug 20, 2012

CVE Published

via MITRE·06:00 PM

Data Sourced

via MITRE·06:00 PM

Description

Frequently Asked Questions

What is the severity of CVE-2011-3947?

CVE-2011-3947 has a severity rating that could lead to a denial of service and potentially allows remote attackers to execute arbitrary code.

How do I fix CVE-2011-3947?

To fix CVE-2011-3947, you should upgrade FFmpeg to versions 0.7.12 or 0.8.11 and Libav to versions 0.5.9, 0.6.6, 0.7.5, or 0.8.1 or higher.

Which software is affected by CVE-2011-3947?

CVE-2011-3947 affects FFmpeg versions 0.7.x before 0.7.12 and 0.8.x before 0.8.11, as well as Libav versions earlier than 0.5.9, 0.6.6, 0.7.5, and 0.8.1.

What type of vulnerability is CVE-2011-3947?

CVE-2011-3947 is categorized as a buffer overflow vulnerability.

What could happen if CVE-2011-3947 is exploited?

If exploited, CVE-2011-3947 can result in a crash of the affected program and may allow remote code execution by the attacker.