Bug 1733414

Summary:	qemu: Out of bounds write in the PBP bitmap via virtio-balloon
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	amit, areis, bdettelb, berrange, cfergeau, dbecker, dwmw2, itamar, jen, jferlan, jjoyce, jschluet, jschorr, kbasil, knoel, lhh, lkundrak, lpeer, mburns, mkenneth, mrezanin, mst, pbonzini, rbalakri, ribarry, rjones, sclewis, security-response-team, slinaber, virt-maint, virt-maint
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:	2020-01-07 10:17:48 UTC	Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1733417

Description Pedro Sampaio 2019-07-26 03:48:17 UTC

A flaw was found in qemu v4.0 and newer. An out of bounds write in the PBP bitmap can be trigged by inflating/deflating virtio-balloon causing qemu to crash.

Upstream patch:

https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg05670.html