CVE-2011-4031

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-05-09 · updated 2026-06-16
Weakness: CWE-191

Description

Integer underflow in the asfrtp_parse_packet function in libavformat/rtpdec_asf.c in FFmpeg before 0.8.3 allows remote attackers to execute arbitrary code via a crafted ASF packet.

Affected products

FFmpeg: before 0.8.3 — fixed in 0.8.3

How to fix

Upgrade to a fixed version: FFmpeg 0.8.3. Check the vendor advisory for mitigations.

References

http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=c2a2ad133eb9d42361804a568dee336992349a5e
http://git.videolan.org/?p=ffmpeg.git%3Ba=shortlog%3Bh=n0.8.3
http://technet.microsoft.com/en-us/security/msvr/msvr11-012
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=c2a2ad133eb9d42361804a568dee336992349a5e
http://git.videolan.org/?p=ffmpeg.git%3Ba=shortlog%3Bh=n0.8.3
http://technet.microsoft.com/en-us/security/msvr/msvr11-012

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