Bug 2074208 (CVE-2022-28893)

Summary:	CVE-2022-28893 kernel: use after free in SUNRPC subsystem
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
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, bskeggs, chwhite, crwood, dfreiber, dhoward, doconnor, drow, dvlasenk, fhrbata, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, miturria, nmurray, ptalbert, qzhao, rkeshri, rvrbovsk, scweaver, steved, teagle, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.18 rc2	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the Linux kernel’s net/sunrpc/xprt.c function in the Remote Procedure Call (SunRPC) protocol. This flaw allows a local attacker to crash the system, leading to a kernel information leak issue.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-05 16:22:35 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:	2089427, 2089428, 2089429, 2089430
Bug Blocks:	2074211

Description Pedro Sampaio 2022-04-11 19:05:49 UTC

A use-after-free flaw was found in net/sunrpc/xprt.c in the Remote Procedure Call (SunRPC) protocol in the Linux kernel. This flaw could allow a local attacker to crash, and this may even lead to a kernel information leak problem.

References:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a
http://www.openwall.com/lists/oss-security/2022/04/11/4
http://www.openwall.com/lists/oss-security/2022/04/11/3

Comment 9 errata-xmlrpc 2022-11-08 09:10:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:7444 https://access.redhat.com/errata/RHSA-2022:7444

Comment 10 errata-xmlrpc 2022-11-08 10:09:29 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:7683 https://access.redhat.com/errata/RHSA-2022:7683

Comment 11 errata-xmlrpc 2022-11-15 09:44:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:7933 https://access.redhat.com/errata/RHSA-2022:7933

Comment 12 errata-xmlrpc 2022-11-15 10:47:48 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:8267 https://access.redhat.com/errata/RHSA-2022:8267

Comment 13 Product Security DevOps Team 2022-12-05 16:22:31 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-2022-28893

Comment 16 errata-xmlrpc 2024-02-07 16:28:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724