CVE-2018-20197

7.8 highEPSS 1.3%

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.

Severity

CVSS 3.0

7.8 high

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2018-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

audiocoding:freeware_advanced_audio_decoder_2

References

https://github.com/knik0/faad2/issues/20
https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html
https://seclists.org/bugtraq/2019/Sep/28
https://security.gentoo.org/glsa/202006-17
https://www.debian.org/security/2019/dsa-4522

Check your stack JSON