CVE-2018-20194
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.
Priority
Status
Package | Release | Status |
---|---|---|
faad2 Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
focal |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
groovy |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
hirsute |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
impish |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
jammy |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
kinetic |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
lunar |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
mantic |
Not vulnerable
(2.8.8-3ubuntu3)
|
|
trusty |
Released
(2.7-8+deb8u3build0.14.04.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Needs triage
|
|
xenial |
Needed
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |