CVE-2023-43786 MEDIUM

CVE-2023-43786: Libx11: stack exhaustion from infinite recursion in putsubimage()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-400
Published October 10, 2023
Last update November 6, 2025
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 10, 2023 CVE published
November 6, 2025 Record updated