Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension

7.3 CVSS

Vulnerability Description

A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

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

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Credits & Attribution

No credits recorded in the NVD database.

References

More from X.Org

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CVE-2025-62231

Xorg: xmayland: value overflow in xkbsetcompatmap()

High 7.3

CVE-2025-62230

Xorg: xwayland: use-after-free in xkb client resource removal

High 7.3

CVE-2025-62229

Xorg: xmayland: use-after-free in xpresentnotify structure creation

High 7.3

CVE-2025-49180

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension

High 7.8

CVE-2025-49178

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore

Medium 5.5

Affected Vendor

X.Org

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Affected Software

xwayland, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION, Red Hat Enterprise Linux 7.7 Advanced Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 6

Vulnerable Versions:

0, 0:24.1.5-4.el10_0, 0:1.1.0-25.el6_10.1, 0:1.8.0-17.el7_7.1, 0:1.20.4-32.el7_9, 0:1.8.0-36.el7_9.2, 0:1.20.11-26.el8_10, 0:21.1.3-18.el8_10, 0:1.15.0-7.el8_10, 0:1.9.0-15.el8_2.14, 0:1.20.6-4.el8_2, 0:1.20.10-2.el8_4, 0:1.11.0-8.el8_4.13, 0:1.12.0-6.el8_6.14, 0:21.1.3-2.el8_6.4, 0:1.20.11-5.el8_6.3, 0:1.20.11-16.el8_8, 0:21.1.3-11.el8_8, 0:1.12.0-15.el8_8.14, 0:1.20.11-31.el9_6, 0:23.2.7-4.el9_6, 0:1.14.1-8.el9_6, 0:21.1.3-3.el9_0, 0:1.20.11-11.el9_0, 0:1.11.0-22.el9_0.15, 0:21.1.3-8.el9_2, 0:1.20.11-18.el9_2, 0:1.12.0-14.el9_2.12, 0:22.1.9-6.el9_4, 0:1.20.11-26.el9_4, 0:1.13.1-8.el9_4.7