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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1791-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
faad2 (PTS)jessie2.7-8+deb8u1vulnerable
jessie (security)2.7-8+deb8u2fixed
stretch2.8.0~cvs20161113-1+deb9u1vulnerable
bullseye, sid, buster2.8.8-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
faad2source(unstable)2.8.8-2low
faad2sourcejessie2.7-8+deb8u2mediumDLA-1791-1

Notes

[stretch] - faad2 <no-dsa> (Minor issue)
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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