CVE-2021-44964

2022-03-1415:15:09

Debian Security Bug Tracker

security-tracker.debian.org

cve-2021-44964

use after free

garbage collector

finalizer

sandbox escape

crafted script file

unix

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

28.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllua5.4< 5.4.4-1lua5.4_5.4.4-1_all.deb
Debian11alllua5.4<= 5.4.2-2lua5.4_5.4.2-2_all.deb
Debian999alllua5.4< 5.4.4-1lua5.4_5.4.4-1_all.deb
Debian13alllua5.4< 5.4.4-1lua5.4_5.4.4-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	lua5.4	< 5.4.4-1	lua5.4_5.4.4-1_all.deb
Debian	11	all	lua5.4	<= 5.4.2-2	lua5.4_5.4.2-2_all.deb
Debian	999	all	lua5.4	< 5.4.4-1	lua5.4_5.4.4-1_all.deb
Debian	13	all	lua5.4	< 5.4.4-1	lua5.4_5.4.4-1_all.deb