Xorg-x11-server: heap buffer overread/data leakage in procxigetselectedevents

7.3 CVSS

Vulnerability Description

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-31080

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

More from Unknown

View All →

CVE-2025-9978

Jeg Elementor Kit < 2.7.0 - Author+ Stored XSS

Unknown 0

CVE-2025-9959

Sandbox escape in smolagents Local Python execution environment via dunder attributes

High 7.6

CVE-2025-9900

Libtiff: libtiff write-what-where

High 8.8

CVE-2025-9784

Undertow: undertow madeyoureset http/2 ddos vulnerability

High 7.5

CVE-2025-9710

Responsive Lightbox & Gallery < 2.5.3 - Unauthenticated Stored-XSS via Comments

Unknown 0

Affected Vendor

Unknown

View all reports →

Affected Software

Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6

Vulnerable Versions:

29.1.0, 0:1.1.0-25.el6_10.13, 0:1.20.4-29.el7_9, 0:1.8.0-33.el7_9, 0:1.13.1-2.el8_9.10, 0:1.20.11-23.el8_10, 0:1.13.1-10.el8_10, 0:21.1.3-16.el8_10, 0:1.9.0-15.el8_2.11, 0:1.11.0-8.el8_4.10, 0:1.12.0-6.el8_6.11, 0:1.12.0-15.el8_8.10, 0:1.13.1-8.el9_4.3, 0:23.2.7-1.el9, 0:1.20.11-26.el9, 0:1.11.0-22.el9_0.11, 0:1.12.0-14.el9_2.8