Vulnerability CVE-2020-15889
Published: 2020-07-21   Modified: 2020-07-22

Description:
Lua through 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.

Type:

CWE-125

 (Out-of-bounds Read)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
LUA -> LUA 

 References:
http://lua-users.org/lists/lua-l/2020-07/msg00078.html
https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312
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