View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2012-0851 low priority: Ubuntu including 4 source packages (ffmpeg, ffmpeg-extra, libav, libav-extra), 28 status rows across 7 suites (hardy, lucid, maverick, natty, oneiric, precise, upstream): DNE 13, released 9, ignored 3, needs-triage 3.
The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted H.264 file, related to the chroma_format_idc value.