| Name | CVE-2011-3946 | 
| Description | The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| References | DSA-3003-1 | 
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|
| ffmpeg (PTS) | bullseye | 7:4.3.7-0+deb11u1 | fixed | 
|  | bullseye (security) | 7:4.3.9-0+deb11u1 | fixed | 
|  | bookworm, bookworm (security) | 7:5.1.7-0+deb12u1 | fixed | 
|  | trixie | 7:7.1.1-1 | fixed | 
|  | trixie (security) | 7:7.1.2-0+deb13u1 | fixed | 
|  | forky, sid | 7:7.1.2-1 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|
| ffmpeg | source | (unstable) | 7:2.4.1-1 | unimportant |  |  | 
| libav | source | wheezy | 6:0.8.15-1 |  | DSA-3003-1 |  | 
| libav | source | (unstable) | 6:10.3-1 | unimportant |  |  | 
Notes
Not suitable for code injection, not treated as security issue