lua parser

The lua parser tag covers discussions about the Lua scripting language's parser component, particularly security vulnerabilities and patching. A key topic is CVE-2022-28805, a heap-based buffer over-read in the Lua parser's singlevar function affecting Lua 5.4.0 through 5.4.3. This flaw allowed crafted scripts to trigger a buffer over-read, and the fix was included in Lua 5.4.4. Users seeking guidance on patching or understanding this vulnerability will find relevant threads under this tag. The content focuses on the technical details of the parser bug and its remediation, without extending to general Lua programming or other parser implementations.