Bug 1260076 (CVE-2015-6815)

Summary: CVE-2015-6815 qemu: net: e1000: infinite loop issue
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abaron, aortega, apevec, ayoung, carnil, chrisw, dallan, gkotton, gmollett, jan.public, jschluet, lhh, lpeer, markmc, rbryant, sclewis, security-response-team, tdecacqu, virt-maint, yeylon
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A flaw was found in the way a QEMU-emulated e1000 network interface card processed transmit descriptor data when sending a network packet. A privileged guest user could use this flaw to crash the guest.
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-09-14 05:27:45 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: 1260224, 1260225    
Bug Blocks: 1254448    

Description Prasad Pandit 2015-09-04 11:33:39 UTC
Qemu emulator built with the e1000 NIC emulation support is vulnerable to an
infinite loop issue. It could occur while processing transmit descriptor data
when sending a network packet.

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

Upstream fix:
-------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01199.html

Comment 1 Prasad Pandit 2015-09-04 19:51:25 UTC
Statement: 

This issue affects the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.

This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This issue affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

Comment 2 Prasad Pandit 2015-09-04 19:54:28 UTC
This has been rated as having Low security impact and is not currently
planned to be addressed in future updates. For additional information, refer
to the Red Hat Enterprise Linux Life Cycle:
https://access.redhat.com/support/policy/updates/errata/.

Comment 3 Prasad Pandit 2015-09-04 19:57:59 UTC
Acknowledgements:

This issue was discovered by Qinghao Tang of QIHU 360 Inc.

Comment 4 Prasad Pandit 2015-09-04 20:05:58 UTC
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1260224]

Comment 5 Prasad Pandit 2015-09-04 20:06:00 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1260225]

Comment 6 Huzaifa S. Sidhpurwala 2015-09-07 04:45:42 UTC
This issue has been assigned CVE-2015-6815 via:


http://openwall.com/lists/oss-security/2015/09/05/5

Comment 8 Fedora Update System 2015-09-24 05:08:54 UTC
qemu-2.4.0-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2015-10-03 17:34:06 UTC
xen-4.5.1-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2015-10-04 22:50:05 UTC
xen-4.5.1-9.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 2015-10-04 23:19:20 UTC
xen-4.4.3-4.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 Fedora Update System 2015-10-09 10:29:04 UTC
qemu-2.3.1-5.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 13 Fedora Update System 2015-10-09 11:20:46 UTC
qemu-2.1.3-11.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.