CVE-2021-32277: debian debian_linux Out-of-bounds Write
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2021-32277DEBIAN-CVE-2021-32277
Published 20-09-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-32277 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.29% chance of exploitation in the next 30 days, higher than 69.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
1.29%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 20-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function sbr_qmf_analysis_32 located in sbr_qmf.c. It allows an attacker to cause code Execution.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.29%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.29% on 19-09-2026
19-09-202619-10-2026
EPSS score1.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFaad2
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- faad2< 2.10.0-1
- debian_linuxEOL9.0 | 10.0
Ubuntu2 products
- faad2< 2.7-8+deb8u3ubuntu0.1~esm1 | < 2.8.0~cvs20150510-1ubuntu0.1+esm1 | < 2.8.8-1ubuntu0.1~esm1 | < 2.9.1-1ubuntu0.1
- welle.ioAll versions (No fix recorded)
Faad2_project1 product
- faad2≤ 2.10.0
3 vendors · 5 products
References
7 links
lists.debian.org/debian-lts-announce/2021/10/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory