Description
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
High
Affected products
- debian / debian_linux11.0 – 11.0
- ibm / aix7.2.5 – 7.2.5.12
- ibm / aix7.3.4 – 7.3.4
- ibm / vios4.1.2.0 – 4.1.2.0
- ibm / vios4.1.0 – 4.1.1.30
- RedHat / enterprise_linux8.0 – 8.0
- RedHat / enterprise_linux9.0 – 9.0
- RedHat / enterprise_linux10.0 – 10.0
- RedHat / enterprise_linux_aus8.4 – 8.4
- RedHat / enterprise_linux_aus8.2 – 8.2
- RedHat / enterprise_linux_aus8.6 – 8.6
- RedHat / enterprise_linux_els6.0 – 6.0
- RedHat / enterprise_linux_els7.0 – 7.0
- RedHat / enterprise_linux_eus8.4 – 8.4
- RedHat / enterprise_linux_eus9.4 – 9.4
- RedHat / enterprise_linux_tus8.8 – 8.8
- RedHat / enterprise_linux_tus8.6 – 8.6
- RedHat / enterprise_linux_update_services_for_sap_solutions9.2 – 9.2
- RedHat / enterprise_linux_update_services_for_sap_solutions8.6 – 8.6
- RedHat / enterprise_linux_update_services_for_sap_solutions8.8 – 8.8
- RedHat / enterprise_linux_update_services_for_sap_solutions9.0 – 9.0
- X.Org / X server21.1.19
- X.Org / xwayland24.1.9
- X.Org / xwayland0 – 24.1.9
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19432
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19433
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19434
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19435
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19489
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19623
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:19909
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:20958
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:20960
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:20961
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:21035
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22040
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22041
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22051
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22055
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22056
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22077
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22096
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22164
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22167
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22364
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22365
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22426
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22427
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22667
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22729
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22742
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:22753
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:0031
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:0033
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:0034
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:0035
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:0036
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2025-62230
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2402653
- MAILING_LISThttps://lists.x.org/archives/xorg-announce/2025-October/003635.html
Updated 5m ago · 8 sources