Bug 1327465 (CVE-2016-7908)

Summary: CVE-2016-7908 Qemu: net: Infinite loop in mcf_fec_do_tx()
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abaron, ailan, alonbl, aortega, apevec, areis, ayoung, bmcclain, chrisw, cvsbot-xmlrpc, dallan, dblechte, drjones, eedri, gkotton, imammedo, jen, jjoyce, jschluet, kbasil, knoel, lhh, lpeer, markmc, mgoldboi, michal.skrivanek, mkenneth, mrezanin, mst, pbonzini, ppandit, rbalakri, rbryant, rkrcmar, sclewis, security-response-team, srevivo, tdecacqu, virt-maint, vkuznets, ykaul, ylavi
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: 2018-01-16 10:24:41 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: 1381193    
Bug Blocks: 1326713    

Description Adam Mariš 2016-04-15 08:01:35 UTC 
Quick Emulator(Qemu) built with the ColdFire Fast Ethernet Controller emulator 
support is vulnerable to an infinite loop issue. It could occur while processing
packets on the transmit queue in 'mcf_fec_do_tx'.

A privileged user/process inside guest could use this issue to crash the Qemu process on the host leading to DoS.

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html
Comment 1 Adam Mariš 2016-04-15 08:01:57 UTC 
Acknowledgments:

Name: Li Qiang (Qihoo 360 Inc.)
Comment 3 Prasad Pandit 2016-10-03 11:27:53 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1381193]
Comment 4 Andrej Nemec 2016-10-04 08:06:50 UTC 
CVE assignment:

http://seclists.org/oss-sec/2016/q4/11