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Bug 596752 (CVE-2016-8576) - <app-emulation/qemu-2.7.0-r5: usb: xHCI: infinite loop vulnerability in xhci_ring_fetch (CVE-2016-8576)
Summary: <app-emulation/qemu-2.7.0-r5: usb: xHCI: infinite loop vulnerability in xhci_...
Status: RESOLVED FIXED
Alias: CVE-2016-8576
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
URL: http://www.openwall.com/lists/oss-sec...
Whiteboard: B3 [glsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2016-10-10 10:09 UTC by Agostino Sarubbo
Modified: 2016-11-18 23:12 UTC (History)
1 user (show)

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Package list:
Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2016-10-10 10:09:06 UTC 
From ${URL} :

Quick Emulator(Qemu) built with the USB xHCI controller emulation support is 
vulnerable to an infinite loop issue. It could occur while processing USB 
command ring in 'xhci_ring_fetch'.

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/2016-10/msg01265.html

This issue was reported by Li Qiang of 360.cn Inc.



@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Matthias Maier gentoo-dev 2016-10-26 21:52:48 UTC 
Stabilization on bug #598046

commit 5a981e9d23127c779dc8ecb1d05ef08fe4d3a011
Author: Matthias Maier <tamiko@gentoo.org>
Date:   Wed Oct 26 16:47:50 2016 -0500

    app-emulation/qemu: multiple security fixes for 2.7.0-r5
    
      CVE-2016-7907, bug 596048
      CVE-2016-7908, bug 596048
      CVE-2016-7909, bug 596048
      CVE-2016-7994, bug 596738
      CVE-2016-7994, bug 596738
      CVE-2016-8576, bug 596752
      CVE-2016-8577, bug 596776
      CVE-2016-8578, bug 596774
      CVE-2016-8668, bug 597110
      CVE-2016-8669, bug 597108
      CVE-2016-8669, bug 597108
      CVE-2016-8909, bug 598044
      CVE-2016-8910, bug 598046
    
    Package-Manager: portage-2.3.0
Comment 2 Matthias Maier gentoo-dev 2016-10-27 13:23:18 UTC 
2.7.0-r5 is stable, all vulnerable versions dropped.

Security, please vote.
Comment 3 GLSAMaker/CVETool Bot gentoo-dev 2016-11-18 23:12:53 UTC 
This issue was resolved and addressed in
 GLSA 201611-11 at https://security.gentoo.org/glsa/201611-11
by GLSA coordinator Aaron Bauman (b-man).