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Bug 1139115 - (CVE-2014-3615) CVE-2014-3615 Qemu: information leakage when guest sets high resolution
CVE-2014-3615 Qemu: information leakage when guest sets high resolution
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20140905,reported=2...
: Security
Depends On: 1139117 1139118 1139119 1139120 1139121 1164001
Blocks: 1130932 1152005
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Reported: 2014-09-08 02:32 EDT by Prasad J Pandit
Modified: 2016-04-26 20:38 EDT (History)
37 users (show)

See Also:
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.
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Clone Of:
Environment:
Last Closed: 2014-12-02 12:40:45 EST
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Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:1669 normal SHIPPED_LIVE Low: qemu-kvm security and bug fix update 2014-10-20 17:30:44 EDT
Red Hat Product Errata RHSA-2014:1670 normal SHIPPED_LIVE Low: qemu-kvm-rhev security and bug fix update 2014-10-20 17:20:00 EDT
Red Hat Product Errata RHSA-2014:1941 normal SHIPPED_LIVE Low: qemu-kvm-rhev security update 2014-12-02 16:59:31 EST

  None (edit)
Description Prasad J Pandit 2014-09-08 02:32:26 EDT 
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 J Pandit 2014-09-08 02:35:43 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1139121]
Comment 4 Prasad J Pandit 2014-09-08 02:38:02 EDT 
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 2014-09-10 20:55:09 EDT 
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 01:07:44 EDT 
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 J Pandit 2014-10-16 11:06:24 EDT 
Acknowledgements:

This issue was discovered by Laszlo Ersek of Red Hat.
Comment 9 Martin Prpič 2014-10-20 07:20:59 EDT 
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 13:20:46 EDT 
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 14:26:10 EDT 
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 12:00:48 EST 
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
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