Bug 1087513 (CVE-2013-4544)

Summary: CVE-2013-4544 Qemu: vmxnet3: bounds checking buffer overrun
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acathrow, amit.shah, areis, berrange, bsarathy, cfergeau, dfleytma, dwmw2, ehabkost, itamar, jkurik, juzhang, knoel, mkenneth, mrezanin, mtosatti, pbonzini, pfrields, pmatouse, qiguo, qzhang, rhod, rjones, scottt.tw, stefanha, virt-maint, virt-maint, yvugenfi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-10 10:03:36 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: 1087521, 1087522, 1095430    
Bug Blocks: 1016047    

Description Prasad Pandit 2014-04-14 13:57:26 UTC 
An array index bounds overrun flaw has been discovered in the vmxnet3 device
as emulated by qemu.

A privileged guest user could use this flaw to corrupt qemu process' memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the qemu process.

Upstream fix:
-------------
 -> http://thread.gmane.org/gmane.comp.emulators.qemu/265562


Acknowledgements:

This issue was discovered by Michael S. Tsirkin of Red Hat.
Comment 3 Prasad Pandit 2014-04-14 14:08:34 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1087522]
Comment 4 Fedora Update System 2014-05-01 22:27:14 UTC 
qemu-1.6.2-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.