Bug 2023588 (CVE-2021-0158)

Summary:	CVE-2021-0158 kernel: improper input validation in the BIOS firmware
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bhu, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, nmurray, ptalbert, qzhao, rkeshri, rvrbovsk, steved, 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:	A vulnerability was found in the BIOS firmware for some Intel(R) Processors caused by improper input validation. This flaw allows a user with local access to cause the device to elevate privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-29 08:39:41 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:	2023590
Bug Blocks:	2023585

Description Dhananjay Arunesh 2021-11-16 05:47:44 UTC

A vulnerability was found in the BIOS firmware for some Intel(R) Processors due to improper input validation. In this flaw, a user with physical access may cause the device to elevate privileges.

References:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00562.html

Comment 1 Dhananjay Arunesh 2021-11-16 05:51:11 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2023590]

Comment 3 Justin M. Forbes 2021-11-17 14:25:35 UTC

This appears to be something that intel is fixing in firmware, is there a kernel aspect to this that I am missing?

Comment 4 Rohit Keshri 2021-11-25 19:02:28 UTC

In reply to comment #3:
> This appears to be something that intel is fixing in firmware, is there a
> kernel aspect to this that I am missing?

Yes, Intel is fixing this with a firmware upgrade, there will be no workarounds or OS fixes for these issues. RHEL is marked not affected.

Comment 7 Product Security DevOps Team 2021-11-29 08:39:37 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-2021-0158