CVE-2020-15945

Summary

Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://lua-users.org/lists/lua-l/2020-07/msg00123.html
• https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3

References

• http://lua-users.org/lists/lua-l/2020-07/msg00123.html
• https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3
• https://www.lua.org/bugs.html#5.4.0-8

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