Bug 1322755 (CVE-2016-3695)

Summary: CVE-2016-3695 kernel: Error injection via EINJ is allowed when securelevel is enabled
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: aquini, bhu, dhoward, dominik.mierzejewski, fhrbata, iboverma, jkacur, joelsmith, jross, kernel-mgr, kstutsma, lgoncalv, mcressma, nmurray, rvrbovsk, security-response-team, vdronov, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-21 00:52:00 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: 1321639, 1329660, 1329661    
Bug Blocks: 1322756    

Description Adam Mariš 2016-03-31 09:20:24 UTC 
It was found that EINJ, error injection mechanism, is allowed even if securelevel, a prevention from userspace performing actions that undermine trust in the platform, is enabled. This can have undesirable side-effects, such as causing the platform to mark hardware as needing replacement.

Product bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1321639

Upstream patch:

https://github.com/mjg59/linux/commit/d7a6be58edc01b1c66ecd8fcc91236bfbce0a420
Comment 1 Adam Mariš 2016-03-31 09:20:39 UTC 
Acknowledgments:

Name: Linn Crosetto (HP)
Comment 2 Adam Mariš 2016-04-20 12:25:07 UTC 
Internal CVE assignment: CVE-2016-3695
Comment 5 Vladis Dronov 2016-04-22 14:32:43 UTC 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6 as the code with the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.