Bug 2106830 (CVE-2022-21505)

Summary:	CVE-2022-21505 kernel: lockdown bypass using IMA
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
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, bhu, brdeoliv, chwhite, crwood, ddepaula, debarbos, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, security-response-team, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An authentication bypass flaw was found in the Linux kernel’s IMA policy when a user performs lockdown. This flaw allows a local user to crash or potentially escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-09 15:47:28 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:	2140526, 2140527, 2140528, 2140529, 2140530
Bug Blocks:	2106831

Description Marian Rehak 2022-07-13 15:35:13 UTC

A bug that allows linux kernel lockdown to be trivially bypassed using IMA.

Comment 4 Wade Mealing 2022-11-07 04:54:54 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2140526]

Comment 6 Justin M. Forbes 2022-11-08 15:10:57 UTC

This was fixed for Fedora with the 5.18.15 stable kernel updates.

Comment 9 errata-xmlrpc 2023-05-09 07:11:22 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 10 errata-xmlrpc 2023-05-09 07:50:18 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 11 Product Security DevOps Team 2023-05-09 15:47:25 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-2022-21505