CVE-2024-31080: Red Hat Enterprise Linux 10

High severity, CVSS 7.3. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

Red Hat Red Hat Enterprise Linux 10
Red Hat Red Hat Enterprise Linux 6
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - Extension: before 0:1.1.0-25.el6_10.13 (fixed in 0:1.1.0-25.el6_10.13)
Red Hat Red Hat Enterprise Linux 7: before 0:1.20.4-29.el7_9 (fixed in 0:1.20.4-29.el7_9); before 0:1.8.0-33.el7_9 (fixed in 0:1.8.0-33.el7_9)
Red Hat Red Hat Enterprise Linux 8: before 0:1.13.1-2.el8_9.10 (fixed in 0:1.13.1-2.el8_9.10); before 0:1.20.11-23.el8_10 (fixed in 0:1.20.11-23.el8_10); before 0:1.13.1-10.el8_10 (fixed in 0:1.13.1-10.el8_10); before 0:21.1.3-16.el8_10 (fixed in 0:21.1.3-16.el8_10)
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support: before 0:1.9.0-15.el8_2.11 (fixed in 0:1.9.0-15.el8_2.11)
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service: before 0:1.9.0-15.el8_2.11 (fixed in 0:1.9.0-15.el8_2.11)
Red Hat Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions: before 0:1.9.0-15.el8_2.11 (fixed in 0:1.9.0-15.el8_2.11)
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: before 0:1.11.0-8.el8_4.10 (fixed in 0:1.11.0-8.el8_4.10)
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service: before 0:1.11.0-8.el8_4.10 (fixed in 0:1.11.0-8.el8_4.10)
Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions: before 0:1.11.0-8.el8_4.10 (fixed in 0:1.11.0-8.el8_4.10)
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support: before 0:1.12.0-6.el8_6.11 (fixed in 0:1.12.0-6.el8_6.11)
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support: before 0:1.12.0-15.el8_8.10 (fixed in 0:1.12.0-15.el8_8.10)
Red Hat Red Hat Enterprise Linux 9: before 0:1.13.1-8.el9_4.3 (fixed in 0:1.13.1-8.el9_4.3); before 0:23.2.7-1.el9 (fixed in 0:23.2.7-1.el9); before 0:1.20.11-26.el9 (fixed in 0:1.20.11-26.el9)
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support: before 0:1.11.0-22.el9_0.11 (fixed in 0:1.11.0-22.el9_0.11)
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support: before 0:1.12.0-14.el9_2.8 (fixed in 0:1.12.0-14.el9_2.8)

Published 2024-04-04. Last modified 2026-06-17.