CVE-2020-15888 Information

Description

Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection leading to a heap-based buffer overflow heap-based buffer over-read or use-after-free.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://lua-users.org/lists/lua-l/2020-07/msg00053.html http://lua-users.org/lists/lua-l/2020-07/msg00054.html http://lua-users.org/lists/lua-l/2020-07/msg00071.html http://lua-users.org/lists/lua-l/2020-07/msg00079.html https://github.com/lua/lua/commit/6298903e35217ab69c279056f925fb72900ce0b7 https://github.com/lua/lua/commit/eb41999461b6f428186c55abd95f4ce1a76217d5

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8