RHSA-2023:1211MediumCVSS 7.0

Red Hat Security Advisory: lua security update

Published
March 14, 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 EUS (v.9.0)
  • Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-0:5.4.4-1.el9_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debuginfo-0:5.4.4-1.el9_0.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • lua-debugsource-0:5.4.4-1.el9_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • +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)