CVE-2020-24370

lua: segmentation fault in getlocal and setlocal functions in ldebug.c

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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).

El archivo ldebug.c en Lua versión 5.4.0, permite un desbordamiento de negación y un error de segmentación en getlocal y setlocal, como es demostrado por getlocal (3,2^31).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-17 CVE Reserved
2020-08-17 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-09-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-191: Integer Underflow (Wrap or Wraparound)
CWE-682: Incorrect Calculation

CAPEC

References (8)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html	Mailing List

URL	Date	SRC
http://lua-users.org/lists/lua-l/2020-07/msg00324.html	2024-08-04

URL	Date	SRC
https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-24370	2021-11-09
https://bugzilla.redhat.com/show_bug.cgi?id=1870290	2021-11-09

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"				5.4.0 Search vendor "Lua" for product "Lua" and version "5.4.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				31 Search vendor "Fedoraproject" for product "Fedora" and version "31"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected