Vulnerability in Lua
CVE-2021-44647
Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.
EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Lua — versions 5.4.3
- Fedoraproject Fedora — versions 34
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Mailing List, Vendor Advisory)
- cve@mitre.org (Patch, Mailing List, Vendor Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2021-44647?
- CVE-2021-44647 is a medium-severity vulnerability in Lua, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.5/10. Published 2022-01-11.
- How severe is CVE-2021-44647?
- Medium severity. CVSS v3 base score is 5.5 out of 10.