Vulnerability CVE-2020-24370
Published: 2020-08-17

Description:
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

Type:

CWE-191

 (Integer Underflow (Wrap or Wraparound))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
LUA -> LUA 

 References:
http://lua-users.org/lists/lua-l/2020-07/msg00324.html
https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b
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