CVE-2021-44647
First published: Tue Jan 11 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lua Lua | =5.4.3 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- http://lua-users.org/lists/lua-l/2021-11/msg00195.html
- http://lua-users.org/lists/lua-l/2021-11/msg00204.html
- https://access.redhat.com/security/cve/cve-2021-44647
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
- https://security.gentoo.org/glsa/202305-23
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
Frequently Asked Questions
What is CVE-2021-44647?
CVE-2021-44647 is a vulnerability in Lua v5.4.3 and above that can cause a local denial of service due to a type confusion in the funcnamefromcode function in ldebug.c.
How does CVE-2021-44647 affect Lua?
CVE-2021-44647 affects Lua v5.4.3 and above, potentially leading to a local denial of service.
What is the severity of CVE-2021-44647?
The severity of CVE-2021-44647 is medium, with a severity value of 5.5.
How can I fix CVE-2021-44647?
To fix CVE-2021-44647, update to a version of Lua that addresses the vulnerability.
Where can I find more information about CVE-2021-44647?
You can find more information about CVE-2021-44647 on the Lua mailing list and the Red Hat CVE database.
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- version/fedoraproject fedora/34