Bug 2106830 (CVE-2022-21505)

Summary: CVE-2022-21505 kernel: lockdown bypass using IMA
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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   
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:
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):