Buffer overflow in Llvm
CVE-2023-26924
LLVM a0dab4950 has a segmentation fault in mlir::outlineSingleBlockRegion. NOTE: third parties dispute this because the LLVM security policy excludes "Language front-ends ... for which a malicious input file can cause undesirable behavior."
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:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.4% 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
- Llvm — versions 2023-01-22
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/llvm/llvm-project/issues/60216 (Exploit, Third Party Advisory, Issue Tracking)
- gist.github.com/Colloportus0/fc16d10d74aedf89d5d1d020ebb89c0c (Third Party Advisory)
- llvm.org/docs/Security.html
Frequently asked questions
- What is CVE-2023-26924?
- CVE-2023-26924 is a medium-severity vulnerability in Llvm, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2023-03-27.
- How severe is CVE-2023-26924?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-26924 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.