RHSA-2023:0957MediumCVSS 5.5

Red Hat Security Advisory: lua security update

Published
February 28, 2023
Last Modified
November 9, 2026

🔗 CVE IDs covered (2)

CVE-2021-43519 →CVE-2021-44964 →

📋 Description

CVE-2021-43519 — lua: stack overflow in lua_resume of ldo.c allows a DoS via a crafted script file CVE-2021-44964 — lua: use after free allows Sandbox Escape

🎯 Affected products61

  • Red Hat CodeReady Linux Builder (v. 9)
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-0:5.4.4-2.el9_1.i686 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-0:5.4.4-2.el9_1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-0:5.4.4-2.el9_1.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-0:5.4.4-2.el9_1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.i686 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.s390x as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.x86_64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debuginfo-0:5.4.4-2.el9_1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.i686 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat CodeReady Linux Builder (v. 9)
  • lua-debugsource-0:5.4.4-2.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • +31 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Ensure that the Lua interpreter runs only trusted scripts.

🔗 References (5)