CVE-2020-15945
5.5CVSSMEDIUM
Description
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.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
and 2 more affected products View all →
Exploitability
Official Patch Available
References
http://lua-users.org/lists/lua-l/2020-07/msg00123.html
lua-users.org
https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3
github.com
https://www.lua.org/bugs.html#5.4.0-8
lua.org
and 5 more references View all →
Timeline
Published
Jul 24, 2020
Last Updated
Feb 19, 2025
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