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No exploitation reportedFix available

CVE-2018-20197

No exploitation reported by the sources we read.

  • Published2018-12-18
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2018-12-1801:29CVE publishedNVD

Versions per branch

NVD
Audiocoding freeware advanced audio decoder 2
BranchAffectedFixed in
2.8= 2.8.8no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • faad2Ubuntu:Pro:18.04:LTSall versions · no fixed version listed
  • faad2Ubuntu:Pro:16.04:LTSall versions · no fixed version listed
  • faad2Ubuntu:Pro:14.04:LTSall versions · fixed in 2.7-8+deb8u3build0.14.04.1~esm1
  • faad2Debian:14all versions · fixed in 2.8.8-2
  • faad2Debian:13all versions · fixed in 2.8.8-2
  • faad2Debian:12all versions · fixed in 2.8.8-2
  • faad2Debian:9all versions · fixed in 2.8.0~cvs20161113-1+deb9u2
  • faad2Debian:8all versions · fixed in 2.7-8+deb8u2

19 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

  • EUVD-2018-12764same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-4w78-j3c6-p6j6same flawGitHub Advisory Database · CC-BY-4.0
  • DLA-1791-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DSA-4522-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2018-12-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-4w78-j3c6-p6j6

Frequently asked questions

What is CVE-2018-20197?

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.

Is CVE-2018-20197 actively exploited?

Active exploitation of CVE-2018-20197 has not been confirmed. Its EPSS score was 1.3% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20197?

CVE-2018-20197 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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