Bug 2140701 (CVE-2022-3551)

Summary:	CVE-2022-3551 xorg-x11-server: memory leak in ProcXkbGetKbdByName() in xkb/xkb.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	adudiak, ajax, jwong, kaycoth, kshier, ofourdan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the xorg-x11-server package. The ProcXkbGetKbdByName function in xkb/xkb.c does not release allocated data when an error is encountered, allowing for a memory leak.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-07 08:15:59 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:	2140702, 2140703, 2140770, 2140771, 2140772, 2140773, 2140774
Bug Blocks:	2135594

Description Guilherme de Almeida Suckevicz 2022-11-07 16:52:10 UTC

A vulnerability, which was classified as problematic, has been found in X.org Server. Affected by this issue is the function ProcXkbGetKbdByName of the file xkb/xkb.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211052.

Reference:
https://vuldb.com/?id.211052

Upstream patch:
https://cgit.freedesktop.org/xorg/xserver/commit/?id=18f91b950e22c2a342a4fbc55e9ddf7534a707d2

Comment 1 Guilherme de Almeida Suckevicz 2022-11-07 16:52:31 UTC

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

Affects: fedora-all [bug 2140703]


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

Affects: fedora-all [bug 2140702]

Comment 4 Olivier Fourdan 2022-11-08 07:34:24 UTC

It's a memory leak, not a security issue.

Some data is not freed when an error is encountered, meaning that in the common case, there is no leak.

Comment 5 errata-xmlrpc 2022-11-16 10:12:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:8491 https://access.redhat.com/errata/RHSA-2022:8491

Comment 6 Product Security DevOps Team 2022-12-07 08:15:57 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-2022-3551

Comment 7 errata-xmlrpc 2023-05-09 07:21:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2248 https://access.redhat.com/errata/RHSA-2023:2248

Comment 8 errata-xmlrpc 2023-05-09 07:22:13 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2249 https://access.redhat.com/errata/RHSA-2023:2249

Comment 9 errata-xmlrpc 2023-05-16 08:14:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2805 https://access.redhat.com/errata/RHSA-2023:2805

Comment 10 errata-xmlrpc 2023-05-16 08:15:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2806 https://access.redhat.com/errata/RHSA-2023:2806