CVE-2021-44647

low-risk
Published 2022-01-11

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Lua

Affected Vendors

Fedoraproject Lua

References (10)

Exploit http://lua-users.org/lists/lua-l/2021-11/msg00195.html
Mailing List http://lua-users.org/lists/lua-l/2021-11/msg00204.html
Third Party Advisory https://access.redhat.com/security/cve/cve-2021-44647
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://security.gentoo.org/glsa/202305-23
Exploit http://lua-users.org/lists/lua-l/2021-11/msg00195.html
Mailing List http://lua-users.org/lists/lua-l/2021-11/msg00204.html
Third Party Advisory https://access.redhat.com/security/cve/cve-2021-44647
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://security.gentoo.org/glsa/202305-23
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low