Vulnerability CVE-2021-44964


Published: 2022-03-14

Description:
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.

Type:

CWE-416

(Use After Free)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
LUA -> LUA 

 References:
http://lua-users.org/lists/lua-l/2021-12/msg00030.html
http://lua-users.org/lists/lua-l/2021-12/msg00015.html
https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability
http://lua-users.org/lists/lua-l/2021-11/msg00186.html
http://lua-users.org/lists/lua-l/2021-12/msg00007.html

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