Use After Free Affecting lua-libs package, versions <0:5.4.4-1.el9_0.1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (35th percentile)

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  • Snyk IDSNYK-RHEL9-LUALIBS-3384663
  • published17 Mar 2022
  • disclosed29 Nov 2021

Introduced: 29 Nov 2021

CVE-2021-44964  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 lua-libs to version 0:5.4.4-1.el9_0.1 or higher.
This issue was patched in RHSA-2023:1211.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lua-libs package and not the lua-libs package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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 Scores

version 3.1