DescriptionThe lpc_prediction function in libavcodec/alac.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via crafted Apple Lossless Audio Codec (ALAC) data, related to a large nb_samples value.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)buster7:4.1.9-0+deb10u1fixed
buster (security)7:4.1.10-0+deb10u1fixed
bullseye (security), bullseye7:4.3.5-0+deb11u1fixed
bookworm, sid7:5.1.2-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libavsourcewheezy(not affected)


[squeeze] - ffmpeg <end-of-life> (Backports to 0.5.x not useful, too many checks missing)
[wheezy] - libav <not-affected> (Vulnerable code not present)
Fix in ffmpeg:;a=commitdiff;h=fd4f4923cce6a2cbf4f48640b4ac706e614a1594
Fix in libav:;a=commit;h=78aa2ed620178044a227fbbe48f749c0dc86023f

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