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CVE-2021-44964

Good to know:

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Date: March 14, 2022

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.

Language: C

Severity Score

Related Resources (9)

https://access.redhat.com/security/cve/CVE-2021-44964
http://lua-users.org/lists/lua-l/2021-12/msg00007.html
https://nvd.nist.gov/vuln/detail/CVE-2021-44964
https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability
https://security-tracker.debian.org/tracker/CVE-2021-44964
http://lua-users.org/lists/lua-l/2021-12/msg00015.html
http://lua-users.org/lists/lua-l/2021-11/msg00186.html
http://lua-users.org/lists/lua-l/2021-12/msg00030.html
https://www.mend.io/vulnerability-database/CVE-2021-44964

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version lua - 5.4.4;https://github.com/lua/lua.git - v5.4.4

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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