CVE-2021-45985

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-03 CVE Reserved
2023-04-10 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-09-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
http://lua-users.org/lists/lua-l/2021-12/msg00019.html	2024-08-04

URL	Date	SRC
https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5	2023-04-14

URL	Date	SRC
https://www.lua.org/bugs.html#5.4.3-11	2023-04-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lua Search vendor "Lua"		Lua Search vendor "Lua" for product "Lua"				5.4.3 Search vendor "Lua" for product "Lua" and version "5.4.3"		-		Affected