Vulnerability Description
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.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lua | Lua | 5.4.3 |
| Fedoraproject | Fedora | 34 |
Related Weaknesses (CWE)
References
- http://lua-users.org/lists/lua-l/2021-11/msg00195.htmlExploitMailing ListVendor Advisory
- http://lua-users.org/lists/lua-l/2021-11/msg00204.htmlMailing ListPatchVendor Advisory
- https://access.redhat.com/security/cve/cve-2021-44647Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202305-23
- http://lua-users.org/lists/lua-l/2021-11/msg00195.htmlExploitMailing ListVendor Advisory
- http://lua-users.org/lists/lua-l/2021-11/msg00204.htmlMailing ListPatchVendor Advisory
- https://access.redhat.com/security/cve/cve-2021-44647Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202305-23
FAQ
What is CVE-2021-44647?
CVE-2021-44647 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.
How severe is CVE-2021-44647?
CVE-2021-44647 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-44647?
Check the references section above for vendor advisories and patch information. Affected products include: Lua Lua, Fedoraproject Fedora.