CVE-2023-43786

Libx11: stack exhaustion from infinite recursion in putsubimage()

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.

Se encontró una vulnerabilidad en libX11 debido a un bucle infinito dentro de la función PutSubImage(). Esta falla permite que un usuario local consuma todos los recursos disponibles del sistema y provoque una condición de denegación de servicio.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-09-22 CVE Reserved
2023-10-04 CVE Published
2023-10-11 EPSS Updated
2024-01-17 First Exploit
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/01/24/9
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/63IBRFLQVZSMOAZBZOBKFWJP26ILRAGQ
https://security.netapp.com/advisory/ntap-20231103-0006

URL	Date	SRC
https://github.com/jfrog/jfrog-CVE-2023-43786-libX11_DoS	2024-01-17

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2024:2145	2024-05-22
https://access.redhat.com/errata/RHSA-2024:2973	2024-05-22
https://access.redhat.com/security/cve/CVE-2023-43786	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2242253	2024-05-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
X.org Search vendor "X.org"		Libx11 Search vendor "X.org" for product "Libx11"				< 1.8.7 Search vendor "X.org" for product "Libx11" and version " < 1.8.7"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected