Bug 2256690 (CVE-2024-0229, ZDI-CAN-22678)

Summary: CVE-2024-0229 xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access
Product: [Other] Security Response Reporter: Robb Gatica <rgatica>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: ndegraef, saroy, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: xorg-server-21.1.11, xwayland-23.2.4 Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2258928, 2258929    
Bug Blocks: 2256538    

Description Robb Gatica 2024-01-03 22:10:39 UTC
An out-of-bounds memory access may occur when a device frozen by a sync grab is reattached to a different master device. The number of buttons is incorrectly calculated to be zero and this can be exploited for LPE if the server runs with extended privileges or RCE for ssh x11 forwarding.

This was reported as ZDI-CAN-22678 to the xorg-security list.

Comment 4 Sandipan Roy 2024-01-18 04:16:48 UTC
Created tigervnc tracking bugs for this issue:

Affects: fedora-all [bug 2258929]


Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 2258928]

Comment 5 errata-xmlrpc 2024-01-22 13:43:29 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:0320 https://access.redhat.com/errata/RHSA-2024:0320

Comment 10 errata-xmlrpc 2024-01-30 10:56:23 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:0557 https://access.redhat.com/errata/RHSA-2024:0557

Comment 11 errata-xmlrpc 2024-01-30 10:59:57 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 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2024:0558 https://access.redhat.com/errata/RHSA-2024:0558

Comment 12 errata-xmlrpc 2024-01-30 14:10:00 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:0597 https://access.redhat.com/errata/RHSA-2024:0597

Comment 13 errata-xmlrpc 2024-01-30 14:53:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:0607 https://access.redhat.com/errata/RHSA-2024:0607

Comment 14 errata-xmlrpc 2024-01-30 15:21:23 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:0614 https://access.redhat.com/errata/RHSA-2024:0614

Comment 15 errata-xmlrpc 2024-01-30 16:07:38 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0621 https://access.redhat.com/errata/RHSA-2024:0621

Comment 16 errata-xmlrpc 2024-01-31 07:07:35 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support
  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Via RHSA-2024:0617 https://access.redhat.com/errata/RHSA-2024:0617

Comment 17 errata-xmlrpc 2024-01-31 08:31:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:0626 https://access.redhat.com/errata/RHSA-2024:0626

Comment 18 errata-xmlrpc 2024-01-31 08:43:43 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:0629 https://access.redhat.com/errata/RHSA-2024:0629

Comment 20 errata-xmlrpc 2024-04-30 09:43:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2170 https://access.redhat.com/errata/RHSA-2024:2170

Comment 21 errata-xmlrpc 2024-04-30 09:43:26 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2169 https://access.redhat.com/errata/RHSA-2024:2169

Comment 22 errata-xmlrpc 2024-05-22 09:32:40 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2995 https://access.redhat.com/errata/RHSA-2024:2995

Comment 23 errata-xmlrpc 2024-05-22 09:32:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2996 https://access.redhat.com/errata/RHSA-2024:2996