Bug 1139115 (CVE-2014-3615) - CVE-2014-3615 Qemu: information leakage when guest sets high resolution
Summary: CVE-2014-3615 Qemu: information leakage when guest sets high resolution
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2014-3615
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20140905,reported=2...
Depends On: 1139117 1139118 1139119 1139120 1139121 1164001
Blocks: 1130932 1152005
TreeView+ depends on / blocked
 
Reported: 2014-09-08 06:32 UTC by Prasad J Pandit
Modified: 2019-06-08 20:10 UTC (History)
37 users (show)

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.
Clone Of:
Environment:
Last Closed: 2014-12-02 17:40:45 UTC


Attachments (Terms of Use)


Links
System 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 21:30:44 UTC
Red Hat Product Errata RHSA-2014:1670 normal SHIPPED_LIVE Low: qemu-kvm-rhev security and bug fix update 2014-10-20 21:20:00 UTC
Red Hat Product Errata RHSA-2014:1941 normal SHIPPED_LIVE Low: qemu-kvm-rhev security update 2014-12-02 21:59:31 UTC

Description Prasad J 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 J Pandit 2014-09-08 06:35:43 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1139121]

Comment 4 Prasad J 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 J 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


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