CVE-2018-20194

MEDIUM

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.

References

https://github.com/knik0/faad2/issues/21

https://lists.debian.org/debian-lts-announce/2019/05/msg00022.html

https://seclists.org/bugtraq/2019/Sep/28

https://www.debian.org/security/2019/dsa-4522

Details

Source: MITRE

Published: 2018-12-18

Updated: 2019-10-03

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH