Vulnerability Monitor

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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 local denial of service.

Published

2022-01-11T13:15:07.833

Last Modified

2024-11-21T06:31:18.587

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-843

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lua	lua	5.4.3	Yes
Operating System	fedoraproject	fedora	34	Yes

References

http://lua-users.org/lists/lua-l/2021-11/msg00195.html Exploit, Mailing List, Vendor Advisory ([email protected])
http://lua-users.org/lists/lua-l/2021-11/msg00204.html Mailing List, Patch, Vendor Advisory ([email protected])
https://access.redhat.com/security/cve/cve-2021-44647 Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/ ([email protected])
https://security.gentoo.org/glsa/202305-23 ([email protected])
http://lua-users.org/lists/lua-l/2021-11/msg00195.html Exploit, Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lua-users.org/lists/lua-l/2021-11/msg00204.html Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/cve-2021-44647 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202305-23 (af854a3a-2127-422b-91ae-364da2661108)