Bug 1081589 (CVE-2014-0155)

Summary:	CVE-2014-0155 kernel: kvm: BUG caused by invalid entry in guest ioapic redirection table
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	agordeev, anton, aquini, dhoward, fhrbata, kernel-mgr, lwang, npajkovs, pbonzini, pholasek, security-response-team
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:	2014-03-27 16:09:27 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:	1081590, 1085016
Bug Blocks:	1081595

Description Petr Matousek 2014-03-27 16:06:34 UTC

It was found that invalid entries in guest ioapic redirection table could lead to BUG_ON in ioapic_deliver() function.

A privileged user in the guest could use this flaw to crash the host.

Acknowledgements:

This issue was discovered by Red Hat.

Comment 2 Petr Matousek 2014-03-27 16:09:27 UTC

Statement:

Not vulnerable.

This issue did not affect the versions of kvm package as shipped with Red Hat Enterprise Linux 5.

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6.

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 5 and Red Hat Enterprise MRG 2 as they did not provide support
for the KVM subsystem.

Comment 3 Petr Matousek 2014-04-07 14:26:01 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1085016]

Comment 4 Petr Matousek 2014-04-07 14:26:50 UTC

Upstream commit:

https://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673f33bcfc71d47b60

Comment 5 Fedora Update System 2014-04-18 15:36:16 UTC

kernel-3.13.10-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2014-05-06 03:31:47 UTC

kernel-3.13.11-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.