Buffer overflow in Yasm Project
CVE-2023-29583
yasm 1.3.0.55.g101bc was discovered to contain a stack overflow via the function parse_expr5 at /nasm/nasm-parse.c. Note: This has been disputed by third parties who argue this is a bug and not a security issue because yasm is a standalone program not designed to run untrusted code.
Vulnerability class: Buffer Overflow
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 (19.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.1% 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)
Public proof-of-concept exploits
References
- github.com/yasm/yasm/issues/218 (Exploit, Issue Tracking)
- github.com/z1r00/fuzz_vuln/blob/main/yasm/stack-overflow/parse_expr5/readme.md (Exploit)
Frequently asked questions
- What is CVE-2023-29583?
- CVE-2023-29583 is a medium-severity vulnerability in Yasm Project, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-04-24.
- How severe is CVE-2023-29583?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-29583 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.