CVE-2021-44647

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory lua-users.org Vendor Advisory lua-users.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lua-users.org/lists/lua-l/2021-11/msg00195.html mailing list exploit vendor advisory
http://lua-users.org/lists/lua-l/2021-11/msg00204.html mailing list patch vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/ vendor advisory
https://access.redhat.com/security/cve/cve-2021-44647 third party advisory
https://security.gentoo.org/glsa/202305-23 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-44647?
CVE-2021-44647 has been scored as a medium severity vulnerability.
How to fix CVE-2021-44647?
To fix CVE-2021-44647, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-44647 being actively exploited in the wild?
It is possible that CVE-2021-44647 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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