CVE-2018-20199

high

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

8.0

Description

A 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 ONLY_LONG_SEQUENCE case.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-20199

OS impact

OS	Version	Status	Fixed in
arch		fixed	`2.9.0-1`
debian	bookworm	fixed	`2.8.8-3.1`
debian	bullseye	fixed	`2.8.8-3.1`
debian	forky	fixed	`2.8.8-3.1`
debian	sid	fixed	`2.8.8-3.1`
debian	trixie	fixed	`2.8.8-3.1`

References

https://security-tracker.debian.org/tracker/CVE-2018-20199

Verify integrity in audit chain (admin only). AS-IS.