Bug 2442764 (CVE-2026-25997) - CVE-2026-25997 freerdp: FreeRDP: Denial of service via heap use-after-free during auto-reconnect
Summary: CVE-2026-25997 freerdp: FreeRDP: Denial of service via heap use-after-free du...
Keywords:
Status: NEW
Alias: CVE-2026-25997
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2442828 2442834 2442842 2442831 2442840
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-25 21:04 UTC by OSIDB Bzimport
Modified: 2026-05-26 04:54 UTC (History)
0 users

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-2026:16014 0 None None None 2026-05-11 16:15:25 UTC
Red Hat Product Errata RHSA-2026:19142 0 None None None 2026-05-19 16:08:48 UTC
Red Hat Product Errata RHSA-2026:20605 0 None None None 2026-05-26 04:54:27 UTC

Description OSIDB Bzimport 2026-02-25 21:04:55 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free` (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes the issue.
Comment 2 errata-xmlrpc 2026-05-11 16:15:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:16014 https://access.redhat.com/errata/RHSA-2026:16014
Comment 3 errata-xmlrpc 2026-05-19 16:08:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19142 https://access.redhat.com/errata/RHSA-2026:19142
Comment 4 errata-xmlrpc 2026-05-26 04:54:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:20605 https://access.redhat.com/errata/RHSA-2026:20605
Note You need to log in before you can comment on or make changes to this bug.