Bug 1139115 (CVE-2014-3615)

Summary:	CVE-2014-3615 Qemu: information leakage when guest sets high resolution
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
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, amit.shah, aortega, apevec, areis, ayoung, berrange, bsarathy, carnil, cfergeau, chrisw, dallan, dwmw2, ehabkost, gkotton, gmollett, itamar, jrusnack, knoel, kraxel, lhh, lpeer, markmc, mkenneth, mrezanin, mtosatti, pbonzini, rbalakri, rbryant, rhod, rjones, sclewis, scottt.tw, stefanha, virt-maint, virt-maint, yeylon
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	qemu-kvm-1.5.3-60.el7_0.8	Doc Type:	Bug Fix
Doc Text:	An information leak flaw was found in the way QEMU's VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-12-02 17:40:45 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:	1139117, 1139118, 1139119, 1139120, 1139121, 1164001
Bug Blocks:	1130932, 1152005

Description Prasad Pandit 2014-09-08 06:32:26 UTC

An information leakage flaw was found in Qemu's VGA emulator. It could lead to
leaking host memory bytes to a VNC client. It could occur when a guest GOP
driver attempts to set a high display resolution.

A privileged user/program able to set such high resolution could use this flaw
to leak host memory bytes.

Upstream fixes:
---------------
   -> http://git.qemu.org/?p=qemu.git;a=commit;h=c1b886c45dc70f247300f549dce9833f3fa2def5
   -> http://git.qemu.org/?p=qemu.git;a=commit;h=ab9509cceabef28071e41bdfa073083859c949a7

Comment 3 Prasad Pandit 2014-09-08 06:35:43 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1139121]

Comment 4 Prasad Pandit 2014-09-08 06:38:02 UTC

Statement:

This issue does not affect the versions of kvm package as shipped with Red Hat
Enterprise Linux 5 or the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 6.

Comment 5 Fedora Update System 2014-09-11 00:55:09 UTC

qemu-1.6.2-8.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 2014-09-23 05:07:44 UTC

qemu-2.1.1-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Prasad Pandit 2014-10-16 15:06:24 UTC

Acknowledgements:

This issue was discovered by Laszlo Ersek of Red Hat.

Comment 9 Martin Prpič 2014-10-20 11:20:59 UTC

IssueDescription:

An information leak flaw was found in the way QEMU's VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest.

Comment 10 errata-xmlrpc 2014-10-20 17:20:46 UTC

This issue has been addressed in the following products:

  RHEV-H and Agents for RHEL-7

Via RHSA-2014:1670 https://rhn.redhat.com/errata/RHSA-2014-1670.html

Comment 11 errata-xmlrpc 2014-10-20 18:26:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1669 https://rhn.redhat.com/errata/RHSA-2014-1669.html

Comment 14 errata-xmlrpc 2014-12-02 17:00:48 UTC

This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7

Via RHSA-2014:1941 https://rhn.redhat.com/errata/RHSA-2014-1941.html