Bug 2345257 (CVE-2025-26595) - CVE-2025-26595 Xorg: xwayland: Buffer overflow in XkbVModMaskText()
Summary: CVE-2025-26595 Xorg: xwayland: Buffer overflow in XkbVModMaskText()
Keywords:
Status: NEW
Alias: CVE-2025-26595
Deadline: 2025-02-25
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2349373 2349374 2349375
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-12 14:23 UTC by OSIDB Bzimport
Modified: 2025-05-13 15:55 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:2500 0 None None None 2025-03-10 12:37:03 UTC
Red Hat Product Errata RHSA-2025:2502 0 None None None 2025-03-10 12:46:10 UTC
Red Hat Product Errata RHSA-2025:2861 0 None None None 2025-03-17 01:28:45 UTC
Red Hat Product Errata RHSA-2025:2862 0 None None None 2025-03-17 01:27:50 UTC
Red Hat Product Errata RHSA-2025:2865 0 None None None 2025-03-17 01:36:13 UTC
Red Hat Product Errata RHSA-2025:2866 0 None None None 2025-03-17 01:14:01 UTC
Red Hat Product Errata RHSA-2025:2873 0 None None None 2025-03-17 01:37:45 UTC
Red Hat Product Errata RHSA-2025:2874 0 None None None 2025-03-17 01:46:13 UTC
Red Hat Product Errata RHSA-2025:2875 0 None None None 2025-03-17 01:44:10 UTC
Red Hat Product Errata RHSA-2025:2879 0 None None None 2025-03-17 03:11:23 UTC
Red Hat Product Errata RHSA-2025:2880 0 None None None 2025-03-17 04:20:09 UTC
Red Hat Product Errata RHSA-2025:3976 0 None None None 2025-04-17 06:35:58 UTC
Red Hat Product Errata RHSA-2025:7163 0 None None None 2025-05-13 10:14:17 UTC
Red Hat Product Errata RHSA-2025:7165 0 None None None 2025-05-13 10:15:28 UTC
Red Hat Product Errata RHSA-2025:7458 0 None None None 2025-05-13 15:55:14 UTC

Description OSIDB Bzimport 2025-02-12 14:23:56 UTC 
The code in XkbVModMaskText() allocates a fixed sized buffer on the
stack and copies the names of the virtual modifiers to that buffer.

The code however fails to check the bounds of the buffer correctly and
would copy the data regardless of the size, which may lead to a buffer
overflow.
Comment 1 errata-xmlrpc 2025-03-10 12:37:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:2500 https://access.redhat.com/errata/RHSA-2025:2500
Comment 2 errata-xmlrpc 2025-03-10 12:46:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:2502 https://access.redhat.com/errata/RHSA-2025:2502
Comment 3 errata-xmlrpc 2025-03-17 01:14:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:2866 https://access.redhat.com/errata/RHSA-2025:2866
Comment 4 errata-xmlrpc 2025-03-17 01:27:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2025:2862 https://access.redhat.com/errata/RHSA-2025:2862
Comment 5 errata-xmlrpc 2025-03-17 01:28:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:2861 https://access.redhat.com/errata/RHSA-2025:2861
Comment 6 errata-xmlrpc 2025-03-17 01:36:13 UTC 
This issue has been addressed in the following products:

  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

Via RHSA-2025:2865 https://access.redhat.com/errata/RHSA-2025:2865
Comment 7 errata-xmlrpc 2025-03-17 01:37:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:2873 https://access.redhat.com/errata/RHSA-2025:2873
Comment 8 errata-xmlrpc 2025-03-17 01:44:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:2875 https://access.redhat.com/errata/RHSA-2025:2875
Comment 9 errata-xmlrpc 2025-03-17 01:46:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2025:2874 https://access.redhat.com/errata/RHSA-2025:2874
Comment 10 errata-xmlrpc 2025-03-17 03:11:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:2879 https://access.redhat.com/errata/RHSA-2025:2879
Comment 11 errata-xmlrpc 2025-03-17 04:20:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:2880 https://access.redhat.com/errata/RHSA-2025:2880
Comment 14 errata-xmlrpc 2025-04-17 06:35:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION

Via RHSA-2025:3976 https://access.redhat.com/errata/RHSA-2025:3976
Comment 15 errata-xmlrpc 2025-05-13 10:14:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7163 https://access.redhat.com/errata/RHSA-2025:7163
Comment 16 errata-xmlrpc 2025-05-13 10:15:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7165 https://access.redhat.com/errata/RHSA-2025:7165
Comment 17 errata-xmlrpc 2025-05-13 15:55:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:7458 https://access.redhat.com/errata/RHSA-2025:7458
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