CVE-2021-44964

MEDIUM
6.3
CVSS Score
Published: March 14, 2022 at 02:24 PM UTC
Updated: June 17, 2026 at 04:13 AM UTC
1 product affected across 1 vendorLua

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Severity
MEDIUM6.3
Exploit prediction
EPSS 1.0%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.4.0 ≤ v ≤ 5.4.3

References (5)

x_refsource_MISCExploitMailing ListTechnical DescriptionVendor Advisory
http://lua-users.org/lists/lua-l/2021-11/msg00186.html
x_refsource_MISCExploitMailing ListVendor Advisory
http://lua-users.org/lists/lua-l/2021-12/msg00007.html
x_refsource_MISCMailing ListVendor Advisory
http://lua-users.org/lists/lua-l/2021-12/msg00015.html
x_refsource_MISCMailing ListVendor Advisory
http://lua-users.org/lists/lua-l/2021-12/msg00030.html

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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