Bug 1819426 (CVE-2019-9436)

Summary:	CVE-2019-9436 kernel: secure boot bypass in bootloader leads to local privilege escalation
Product:	[Other] Security Response	Reporter:	msiddiqu
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, airlied, allarkin, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, qzhao, rt-maint, rvrbovsk, steved, 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:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-19 14:11:06 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:	1819428
Bug Blocks:	1750356, 1819427

Description msiddiqu 2020-03-31 20:06:22 UTC

A vulnerability was found the bootloader in Kernel where there is a possible secure boot bypass. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation.

References:

https://source.android.com/security/bulletin/pixel/2019-09-01

Comment 1 msiddiqu 2020-03-31 20:07:38 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1819428]

Comment 2 Justin M. Forbes 2020-04-01 15:24:55 UTC

This is a vulnerability in the LG Bootloader and has nothing to do with the linux kernel or upstream.