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:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	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:
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.