CVE-2021-23172: sound_exchange_project sound_exchange Classic Buffer Overflow
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-23172DEBIAN-CVE-2021-23172
Published 25-08-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-23172 is a medium (CVSS 5.5) Classic Buffer Overflow vulnerability in sound_exchange_project sound_exchange. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.46%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 25-08-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability was found in SoX, where a heap-buffer-overflow occurs in function startread() in hcom.c file. The vulnerability is exploitable with a crafted hcomn file, that could cause an application to crash.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.01 pp
From 0.45% on 21-09-2026
21-09-202621-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (sourceforge.net)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian1 product
- sox< 14.4.2+git20190427-3.2
Sound_exchange_project1 product
- sound_exchange14.4.2-7
Ubuntu1 product
- sox< 14.4.1-3ubuntu1.1+esm2 | < 14.4.1-5+deb8u4ubuntu0.1+esm1 | < 14.4.2-3ubuntu0.18.04.2 | < 14.4.2+git20190427-2+deb11u1build0.20.04.1 | < 14.4.2+git20190427-2+deb11u1build0.22.04.1
3 vendors · 3 products