CVE-2021-45985

Mitre: CVE-2021-45985 Erroneous finalizer call in Lua leads to a heap-based buffer over-read

CVE-2021-45985 is fixed in 25 products on 2 platforms, first by DEBIAN-CVE-2021-45985, released April 10, 2023. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms

CVSS

7.5

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0142

72nd percentile

<p>This CVE was assigned by Mitre. Some Microsoft products consume <a href="https://lua.org/about.html">Lau open-source software</a>. The purpose of this document is to attest to the fact that the products listed in the Security Updates table have been updated to protect against this vulnerability.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 21H2 for 32-bit Systems		KB5044273	Oct 8, 2024
Windows 10 Version 21H2 for ARM64-based Systems		KB5044273	Oct 8, 2024
Windows 10 Version 21H2 for x64-based Systems		KB5044273	Oct 8, 2024
Windows 10 Version 22H2 for 32-bit Systems		KB5044273	Oct 8, 2024
Windows 10 Version 22H2 for ARM64-based Systems		KB5044273	Oct 8, 2024
Windows 10 Version 22H2 for x64-based Systems		KB5044273	Oct 8, 2024
Windows 11 Version 22H2 for ARM64-based Systems		KB5044285	Oct 8, 2024
Windows 11 Version 22H2 for x64-based Systems		KB5044285	Oct 8, 2024
Windows 11 Version 23H2 for ARM64-based Systems		KB5044285	Oct 8, 2024
Windows 11 Version 23H2 for x64-based Systems		KB5044285	Oct 8, 2024
Windows 11 Version 24H2 for ARM64-based Systems	26100.2894	KB5050009	Jan 14, 2025
Windows 11 Version 24H2 for x64-based Systems	26100.2894	KB5050009	Jan 14, 2025
Windows Server 2022	20348.2762	KB5044281	Oct 8, 2024
Windows Server 2022 (Server Core installation)	20348.2762	KB5044281	Oct 8, 2024
Windows Server 2022, 23H2 Edition (Server Core installation)	25398.1189	KB5044288	Oct 8, 2024
Windows Server 2025	26100.2894	KB5050009	Jan 14, 2025
Windows Server 2025 (Server Core installation)	26100.2894	KB5050009	Jan 14, 2025
Linux
lua · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-debuginfo · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-debugsource · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-devel · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-libs · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-libs-debuginfo · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua-static · amzn 2023	5.4.4-3.amzn2023.0.2	ALAS2023-2024-533	Feb 15, 2024
lua5.4 · Debian 12.15 (bookworm)	5.4.4-1	DEBIAN-CVE-2021-45985	Apr 10, 2023
lua5.4 · Debian 13.5 (trixie)	5.4.4-1	DEBIAN-CVE-2021-45985	Apr 10, 2023
lua5.4 · Debian 14	5.4.4-1	DEBIAN-CVE-2021-45985	Apr 10, 2023

Details

Published
April 10, 2023
Weakness
Dependency on Vulnerable Third-Party Component
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-45985

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2021-45985">CVE-2021-45985 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.