The vc1_decode_frame function in libavcodec/vc1dec.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer deref…

Description

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Advisories 1

• DLA-2021-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026

References

• https://bugzilla.libav.org/show_bug.cgi?id=1099
• https://deb.freexian.com/extended-lts/tracker/CVE-2017-17127
• [debian-lts-announce] 20191205 [SECURITY] [DLA 2021-1] libav security update mailing-list