Bug 2180288 (CVE-2023-1393)

Summary:	CVE-2023-1393 xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	adriennf, ajax, jgrulich, ofourdan, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	xorg-server 21.1.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in X.Org Server. This flaw occurs if a client explicitly destroys the compositor overlay window (aka COW), where Xserver leaves a dangling pointer to that window in the CompScreen structure, which will later trigger a use-after-free issue. The Overlay Window use-after-free issue can lead to a local privilege escalation vulnerability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-16 23:41:17 UTC	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:	2180290, 2180291, 2180296, 2180297, 2180298, 2180299, 2180300, 2180301, 2180302, 2180303, 2180304, 2180305, 2180306, 2180307, 2180308, 2180309, 2180310, 2182852, 2182853, 2182854, 2182855, 2182856, 2182857
Bug Blocks:	2179992

Description Sandipan Roy 2023-03-21 06:40:23 UTC

ZDI-CAN-19866/CVE-2023-1393: X.Org Server Overlay Window Use-After-Free
Local Privilege Escalation Vulnerability

If a client explicitly destroys the compositor overlay window (aka COW),
the Xserver would leave a dangling pointer to that window in the CompScreen
structure, which will trigger a use-after-free later.

Comment 6 Pedro Sampaio 2023-03-29 19:27:56 UTC

Created tigervnc tracking bugs for this issue:

Affects: fedora-36 [bug 2182856]
Affects: fedora-37 [bug 2182857]


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

Affects: fedora-36 [bug 2182852]
Affects: fedora-37 [bug 2182853]


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

Affects: fedora-36 [bug 2182854]
Affects: fedora-37 [bug 2182855]

Comment 7 errata-xmlrpc 2023-04-03 15:59:24 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-2023:1549 https://access.redhat.com/errata/RHSA-2023:1549

Comment 8 errata-xmlrpc 2023-04-03 16:01:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2023:1548 https://access.redhat.com/errata/RHSA-2023:1548

Comment 9 errata-xmlrpc 2023-04-04 06:50:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:1551 https://access.redhat.com/errata/RHSA-2023:1551

Comment 10 errata-xmlrpc 2023-04-04 09:32:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:1592 https://access.redhat.com/errata/RHSA-2023:1592

Comment 11 errata-xmlrpc 2023-04-04 09:48:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2023:1599 https://access.redhat.com/errata/RHSA-2023:1599

Comment 12 errata-xmlrpc 2023-04-04 09:49:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:1600 https://access.redhat.com/errata/RHSA-2023:1600

Comment 13 errata-xmlrpc 2023-04-04 09:49:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2023:1598 https://access.redhat.com/errata/RHSA-2023:1598

Comment 14 errata-xmlrpc 2023-04-04 09:49:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2023:1594 https://access.redhat.com/errata/RHSA-2023:1594

Comment 15 Product Security DevOps Team 2023-05-16 23:41:15 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-1393

Comment 16 errata-xmlrpc 2023-11-07 08:13:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6340 https://access.redhat.com/errata/RHSA-2023:6340

Comment 17 errata-xmlrpc 2023-11-07 08:13:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6341 https://access.redhat.com/errata/RHSA-2023:6341

Comment 18 errata-xmlrpc 2023-11-14 15:16:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:6916 https://access.redhat.com/errata/RHSA-2023:6916

Comment 19 errata-xmlrpc 2023-11-14 15:16:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:6917 https://access.redhat.com/errata/RHSA-2023:6917