Bug 2114937 (CVE-2022-20141)

Summary:	CVE-2022-20141 kernel: igmp: use-after-free in ip_check_mc_rcu when opening and closing inet sockets
Product:	[Other] Security Response	Reporter:	Alex <allarkin>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, ddepaula, debarbos, dvlasenk, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, tyberry, vkumar, walters, williams, wmealing
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 use-after-free flaw was found in the Linux kernel’s IGMP protocol in how a user triggers a race condition in the ip_check_mc_rcu function. This flaw allows a local user to crash or potentially escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-16 19:12:31 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:	2114946, 2114948, 2114950, 2114952, 2122608
Bug Blocks:	2114933

Description Alex 2022-08-03 14:40:19 UTC

A flaw in the Linux Kernel found in the net/ipv4/igmp.c.
When local user opening and closing inet sockets with IGMP protocol, the race condition could happen that leads to use after free due to improper locking in function ip_check_mc_rcu.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/ipv4/igmp.c?h=v5.19&id=23d2b94043ca8835bd1e67749020e839f396a1c2

Comment 5 Wade Mealing 2022-08-29 04:26:00 UTC

*** Bug 2122087 has been marked as a duplicate of this bug. ***

Comment 6 Alex 2022-08-30 12:01:21 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2122608]

Comment 7 Justin M. Forbes 2022-08-31 16:23:33 UTC

This was fixed for Fedora with the 5.13.16 stable kernel updates.

Comment 11 errata-xmlrpc 2023-05-09 07:11:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2148 https://access.redhat.com/errata/RHSA-2023:2148

Comment 12 errata-xmlrpc 2023-05-09 07:50:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2458 https://access.redhat.com/errata/RHSA-2023:2458

Comment 13 errata-xmlrpc 2023-05-16 08:04:48 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2736 https://access.redhat.com/errata/RHSA-2023:2736

Comment 14 errata-xmlrpc 2023-05-16 08:33:41 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2951 https://access.redhat.com/errata/RHSA-2023:2951

Comment 15 Product Security DevOps Team 2023-05-16 19:12:26 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-2022-20141

Comment 18 errata-xmlrpc 2024-01-24 16:42:30 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0412 https://access.redhat.com/errata/RHSA-2024:0412