Bug 1288532 (CVE-2016-1568)

Summary:	CVE-2016-1568 Qemu: ide: ahci use-after-free vulnerability in aio port commands
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:	abaron, aortega, apevec, areis, ayoung, chrisw, dallan, eglynn, gkotton, jen, jjoyce, jschluet, knoel, lhh, lpeer, lsvaty, markmc, mburns, mgarciac, mkenneth, mrezanin, mst, osoukup, pbonzini, pgrist, ppandit, rbalakri, rbryant, sclewis, security-response-team, slong, tdecacqu, virt-maint, yeylon
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A use-after-free flaw was found in the way QEMU's IDE AHCI emulator processed certain AHCI Native Command Queuing (NCQ) AIO commands. A privileged guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-01-28 20:33:14 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:	1297023, 1297024, 1297290, 1297291, 1297292, 1297293, 1297296, 1297297, 1297299, 1298395
Bug Blocks:	1288546, 1298460

Description Adam Mariš 2015-12-04 14:12:13 UTC

Qemu emulator built with the IDE AHCI Emulation support is vulnerable to
a use  after free issue. It could occur after processing AHCI Native
Command Queuing(NCQ) AIO commands.

A privileged user inside guest could use this flaw to crash the Qemu process 
instance or potentially execute arbitrary code with privileges of the Qemu 
process on the host.

Upstream fix:
-------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg01184.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/01/09/2

Comment 3 Prasad Pandit 2016-01-08 18:45:33 UTC

Statement: 

(none)

Comment 4 Prasad Pandit 2016-01-08 18:51:10 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1297024]

Comment 5 Prasad Pandit 2016-01-08 18:51:25 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1297023]

Comment 12 Fedora Update System 2016-01-24 03:27:03 UTC

qemu-2.4.1-6.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 13 errata-xmlrpc 2016-01-28 15:56:29 UTC

This issue has been addressed in the following products:

  OpenStack 7 For RHEL 7

Via RHSA-2016:0088 https://rhn.redhat.com/errata/RHSA-2016-0088.html

Comment 14 errata-xmlrpc 2016-01-28 15:57:48 UTC

This issue has been addressed in the following products:

  OpenStack 6 for RHEL 7

Via RHSA-2016:0087 https://rhn.redhat.com/errata/RHSA-2016-0087.html

Comment 15 errata-xmlrpc 2016-01-28 15:59:14 UTC

This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7

Via RHSA-2016:0086 https://rhn.redhat.com/errata/RHSA-2016-0086.html

Comment 16 errata-xmlrpc 2016-01-28 16:02:11 UTC

This issue has been addressed in the following products:

  RHEV 3.6 For IBM Power Systems
  RHEV-H and Agents for RHEL-7

Via RHSA-2016:0084 https://rhn.redhat.com/errata/RHSA-2016-0084.html