CVE-2018-20198

NameCVE-2018-20198
DescriptionA NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the LONG_START_SEQUENCE case.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1791-1, DSA-4522-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
faad2 (PTS)jessie, jessie (lts)2.7-8+deb8u4fixed
stretch (security), stretch (lts), stretch2.8.0~cvs20161113-1+deb9u3fixed
buster, buster (security)2.10.0-1~deb10u1fixed
bullseye2.10.0-1fixed
bookworm2.10.1-1fixed
sid, trixie2.11.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
faad2sourcewheezy(unfixed)end-of-life
faad2sourcejessie2.7-8+deb8u2DLA-1791-1
faad2sourcestretch2.8.0~cvs20161113-1+deb9u2DSA-4522-1
faad2source(unstable)2.8.8-2low

Notes

https://github.com/knik0/faad2/issues/23
same underlying issue as CVE-2018-20362, same fix:
https://github.com/knik0/faad2/commit/466b01d504d7e45

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