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CVE

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 l

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.

MEDIUM · CVSS 5.5 EPSS 0.00134
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
▤

Affected Products & Versions

2
luaall versions
fedoraproject fedoraall versions
⚠

Public Exploits & PoCs

1
poclua-users.org · msg00195.htmllua-users.org
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Jan 2022 · 01:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
suse-csafopenSUSE-SU-2025:15401-1
suse-csafopenSUSE-SU-2024:12156-1
msrcCVE-2021-44647
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
https://security.gentoo.org/glsa/202305-23
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