PT-2020-14690 · Lua · Lua

Bruno Vernay · Published 2020-07-21 · Updated 2024-03-06 · CVE-2020-15889

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Lua version 5.4.0

Description The issue is related to a heap-based buffer over-read in the getobjname function. This occurs because youngcollection in lgc.c uses markold for an insufficient number of list members.

Recommendations For Lua version 5.4.0, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BIT-LUA-2020-15889

CVE-2020-15889

Affected Products

Lua

References · 10

• 🔥 http://lua-users.org/lists/lua-l/2020-07/msg00078.html · Exploit
• https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312 · Patch
• https://security-tracker.debian.org/tracker/CVE-2020-15889 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-15889 · Security Note
• https://osv.dev/vulnerability/CVE-2020-15889 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-lua-2020-15889 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-15889 · Vendor Advisory
• http://lua-users.org/lists/lua-l/2020-12/msg00157.html · Note
• https://t.me/cvenotify/7583 · Telegram Post
• https://t.me/cvenotify/7356 · Telegram Post