Bug 2122228 (CVE-2022-3028)

Summary:	CVE-2022-3028 kernel: race condition in xfrm_probe_algs can lead to OOB read/write
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
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, lleshchi, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.0-rc3	Doc Type:	If docs needed, set a value
Doc Text:	A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read and copying it into a socket.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-16 19:14:50 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:	2122366, 2122369, 2122370, 2122371, 2122372
Bug Blocks:	2115734

Description Mauro Matteo Cascella 2022-08-29 14:33:17 UTC

The function *xfrm_probe_algs* updates the availability field of items in the authentication algorithms list (*aalg_list* variable), but this update can occur simultaneously with another invocation of *xfrm_probe_algs*, allowing an attacker to potentially trigger either an OOB write or leaking kernel heap memory by performing an OOB read and copying it into a socket.

Upstream references:
https://lore.kernel.org/all/YtoWqEkKzvimzWS5@gondor.apana.org.au/T/
https://github.com/torvalds/linux/commit/ba953a9d89a00c078b85f4b190bc1dde66fe16b5

Comment 2 Mauro Matteo Cascella 2022-08-29 21:18:00 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2122366]

Comment 7 errata-xmlrpc 2023-05-09 07:11:34 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 8 errata-xmlrpc 2023-05-09 07:50:34 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 9 errata-xmlrpc 2023-05-16 08:04:50 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 10 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 11 Product Security DevOps Team 2023-05-16 19:14:47 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-2022-3028

Comment 14 errata-xmlrpc 2024-01-24 16:42:37 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