Use After Free in Yasm Project
CVE-2023-31725
yasm 1.3.0.55.g101bc was discovered to contain a heap-use-after-free via the function expand_mmac_params at yasm/modules/preprocs/nasm/nasm-pp.c.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Yasm Project — versions 1.3.0.55.g101bc
Weakness classification (CWE)
References
- github.com/yasm/yasm/issues/221 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/DaisyPo/fuzzing-vulncollect/tree/main/yasm/heap-use-after-free/nasm-… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-31725?
- CVE-2023-31725 is a medium-severity vulnerability in Yasm Project, classified under Use After Free. CVSS score: 5.5/10. Published 2023-05-17.
- How severe is CVE-2023-31725?
- Medium severity. CVSS v3 base score is 5.5 out of 10.