Bug 2245663 (CVE-2023-5633)

Summary:	CVE-2023-5633 kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	acaringi, allarkin, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, dvlasenk, ezulian, gcovolo, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jpoimboe, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mstowell, ndegraef, nmurray, ptalbert, rogbas, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.6-rc6	Doc Type:	If docs needed, set a value
Doc Text:	The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.	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:	2245668
Bug Blocks:	2245660

Description Mauro Matteo Cascella 2023-10-23 13:51:37 UTC

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

Upstream patch & commit:
https://lists.freedesktop.org/archives/dri-devel/2023-September/424805.html
https://github.com/torvalds/linux/commit/91398b413d03660fd5828f7b4abc64e884b98069

Comment 1 Mauro Matteo Cascella 2023-10-23 14:37:57 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2245668]

Comment 4 Justin M. Forbes 2023-10-23 17:20:24 UTC

This is fixed for Fedora with the 6.5.8 stable kernel update.

Comment 23 errata-xmlrpc 2024-01-10 10:42:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:0113 https://access.redhat.com/errata/RHSA-2024:0113

Comment 24 errata-xmlrpc 2024-01-10 10:46:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:0134 https://access.redhat.com/errata/RHSA-2024:0134

Comment 25 errata-xmlrpc 2024-01-24 16:29:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:0461 https://access.redhat.com/errata/RHSA-2024:0461

Comment 26 errata-xmlrpc 2024-03-19 17:27:34 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:1404 https://access.redhat.com/errata/RHSA-2024:1404

Comment 32 errata-xmlrpc 2024-07-24 13:10:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4823 https://access.redhat.com/errata/RHSA-2024:4823

Comment 33 errata-xmlrpc 2024-07-24 13:22:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4831 https://access.redhat.com/errata/RHSA-2024:4831