CVE-2021-44964

Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.

CVSS v3.1 NVD

6.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.98% chance of exploitation in the next 30 days, 62nd percentile

Published

2022-03-14

Updated

2024-08-04

Proof-of-concept exploits (1)

• http://lua-users.org/lists/lua-l/2021-11/msg00186.html

Security advisories

• http://lua-users.org/lists/lua-l/2021-12/msg00007.html
• http://lua-users.org/lists/lua-l/2021-12/msg00015.html
• http://lua-users.org/lists/lua-l/2021-12/msg00030.html
• Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability

References

• CVE Record
• NVD entry