CRITICAL 9.1 Microsoft

CVE-2022-28805

singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Microsoft Security Update 2022-Apr: singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Affected Products

azl3 ntopng 5.2.1-5 on Azure Linux 3.0
cm1 lua 5.3.5-9 on CBL Mariner 1.0
cbl2 lua 5.4.3-2 on CBL Mariner 2.0
azl3 ntopng 5.2.1-3 on Azure Linux 3.0

References

Published: 2022-04-12 · Source: Microsoft · Feed updated: 2026-08-21

This critical severity vulnerability with a CVSS score of 9.1 was published on 2022-04-12 via Microsoft. Affected: azl3 ntopng 5.2.1-5 on Azure Linux 3.0, cm1 lua 5.3.5-9 on CBL Mariner 1.0, cbl2 lua 5.4.3-2 on CBL Mariner 2.0 and 1 more.

Risk Timeline

CVE Disclosed2022-04-12 · 1591 days ago

Remediation Resources

Official Advisory

msrc.microsoft.com/update-guide/vulnerability/CVE-2022-28805

NVD / MITRE

nvd.nist.gov/vuln/detail/CVE-2022-28805

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