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Published: 18 December 2018

There is a stack-based buffer underflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because limiting the additional noise energy level is mishandled for the G_max > G case.

From the Ubuntu security team

It was discovered that Freeware Advanced Audio Decoder 2 incorrectly validated user input when processing crafted AAC files. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.


very similar to CVE-2018-20194, same fix:


CVSS 3 base score: 7.8


Package Release Status
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan Not vulnerable
focal Not vulnerable
groovy Not vulnerable
hirsute Not vulnerable
impish Not vulnerable
jammy Not vulnerable
precise Does not exist

trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

xenial Ignored
(end of standard support, was needed)