Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.
First Last Prev Next    This bug is not in your last search results.
Bug 1336650 - (CVE-2016-4453) CVE-2016-4453 Qemu: display: vmsvga: infinite loop in vmsvga_fifo_run() routine
CVE-2016-4453 Qemu: display: vmsvga: infinite loop in vmsvga_fifo_run() routine
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
: ---
: ---
Assigned To: Red Hat Product Security
impact=low,public=20160530,reported=2...
: Security
Depends On: 1340744 1340746
Blocks: 1336467
  Show dependency tree / graph
 
Reported: 2016-05-17 02:56 EDT by Andrej Nemec
Modified: 2018-07-18 10:53 EDT (History)
39 users (show)

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Quick Emulator(Qemu) built with the VMware-SVGA "chipset" emulation support is vulnerable to an infinite loop issue. It could occur while processing VGA commands via its FIFO buffer. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Result info (6.89 KB, text/plain)
2016-05-17 02:58 EDT, Andrej Nemec 		no flags Details
Add an attachment (proposed patch, testcase, etc.)

  None (edit)
Description Andrej Nemec 2016-05-17 02:56:19 EDT 
Quick Emulator(Qemu) built with the VMware-SVGA "chipset" emulation support is vulnerable to an infinite loop issue. It could occur while processing VGA commands via its FIFO buffer.

A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS.

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05270.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/05/30/2
Comment 1 Andrej Nemec 2016-05-17 02:56:38 EDT 
Acknowledgments:

Name: Li Qiang (Qihoo 360 Inc.)
Comment 2 Andrej Nemec 2016-05-17 02:58 EDT 
Created attachment 1158193 [details]
Result info
Comment 5 Prasad J Pandit 2016-05-30 04:47:07 EDT 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1340746]
Comment 6 Prasad J Pandit 2016-05-30 04:47:25 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1340744]
Comment 7 Fedora Update System 2016-06-17 11:57:51 EDT 
xen-4.5.3-8.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2016-06-18 14:44:29 EDT 
xen-4.6.1-11.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2016-06-25 15:25:28 EDT 
qemu-2.6.0-4.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2016-07-02 15:24:52 EDT 
qemu-2.3.1-16.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2016-07-02 15:30:10 EDT 
qemu-2.4.1-11.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.