CVE-2018-20194: audiocoding freeware_advanced_audio_decoder_2 Out-of-bounds Write
Vulnerability summary
CVE-2018-20194 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in audiocoding freeware_advanced_audio_decoder_2. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.4% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 18-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.32%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.32% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFaad2
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- faad2< 2.9.0-r0
Audiocoding1 product
Debian1 product
- faad2< 2.8.8-2
Ubuntu1 product
- faad2< 2.7-8+deb8u3build0.14.04.1~esm1 | All versions (No fix recorded)
4 vendors · 4 products
