Description
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
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-2025-62231
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2402660
- MAILING_LISThttps://lists.x.org/archives/xorg-announce/2025-October/003635.html
Updated 6m ago · 8 sources