Vulnerability · Published May 9, 2023 · Assigned by mitre
CVE-2023-31973
High 7.8
In plain English
A high-severity memory leak in the yasm package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 76.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
yasm v1.3.0 was discovered to contain a use after free via the function expand_mmac_params at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | yasm | no fix listed | DEBIAN-CVE-2023-31973 |
| Debian:13 | yasm | no fix listed | DEBIAN-CVE-2023-31973 |
| Debian:14 | yasm | no fix listed | DEBIAN-CVE-2023-31973 |
Affected products (as reported)
Weakness: CWE-401, CWE-590 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H