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lua vulnerability
About this tag
The lua vulnerability tag on WindowsForum.com covers discussions about security flaws in the Lua programming language interpreter, particularly CVE-2021-44964. This specific vulnerability is a use-after-free bug in Lua 5.4.0 through 5.4.3 affecting the garbage collector and finalizer code. Tagged content includes analysis of Microsoft's advisory regarding Azure Linux, explaining that while Azure Linux includes the vulnerable library, the attestation does not guarantee other Microsoft products are unaffected. The tag focuses on understanding the scope of Lua vulnerabilities in Microsoft environments, including WSL, VM images, and containers, and provides technical background on the defect's mechanics.
Microsoft’s short advisory that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it is a product‑scoped attestation, not proof that no other Microsoft product can include the same vulnerable Lua runtime. Background
The vulnerability tracked...