| Name | CVE-2018-20197 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1791-1, DSA-4522-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| faad2 (PTS) | jessie, jessie (lts) | 2.7-8+deb8u4 | fixed |
| stretch (security), stretch (lts), stretch | 2.8.0~cvs20161113-1+deb9u3 | fixed |
| buster (security), buster, buster (lts) | 2.10.0-1~deb10u1 | fixed |
| bullseye | 2.10.0-1 | fixed |
| bookworm | 2.10.1-1 | fixed |
| sid, trixie | 2.11.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| faad2 | source | wheezy | (unfixed) | end-of-life | | |
| faad2 | source | jessie | 2.7-8+deb8u2 | | DLA-1791-1 | |
| faad2 | source | stretch | 2.8.0~cvs20161113-1+deb9u2 | | DSA-4522-1 | |
| faad2 | source | (unstable) | 2.8.8-2 | | | |
Notes
https://github.com/knik0/faad2/issues/20
very similar to CVE-2018-20194, same fix:
https://github.com/knik0/faad2/commit/6b4a7cde30f2e2c