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Bug 593950 (CVE-2016-7421) - <app-emulation/qemu-2.7.0-r3: scsi: pvscsi: infinite loop when processing IO requests
Summary: <app-emulation/qemu-2.7.0-r3: scsi: pvscsi: infinite loop when processing IO ...
Status: RESOLVED FIXED
Alias: CVE-2016-7421
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor
Assignee: Gentoo Security
URL: http://www.openwall.com/lists/oss-sec...
Whiteboard: B3 [glsa cve]
Keywords:
Depends on: CVE-2016-7157
Blocks:
  Show dependency tree
 
Reported: 2016-09-16 09:43 UTC by Agostino Sarubbo
Modified: 2016-09-26 00:39 UTC (History)
1 user (show)

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Package list:
Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2016-09-16 09:43:54 UTC 
From ${URL} :

Quick Emulator(Qemu) built with the VMWARE PVSCSI paravirtual SCSI bus 
emulation support is vulnerable to an infinite loop issue. It could occur 
while processing SCSI IO requests.

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/2016-09/msg03609.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1376731

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 2016-09-18 04:36:05 UTC 
commit b50850bf14489740441b408a2d45f6e64d724f7d
Author: Matthias Maier <tamiko@gentoo.org>
Date:   Sat Sep 17 23:02:53 2016 -0500

    app-emulation/qemu: security fixes, ebuild maintenance
    
    bug 593956: CVE-2016-7422
    bug 593950: CVE-2016-7421
    bug 590230: missing use depend opengl? ( media-libs/mesa[...,gbm] )
    bug 575326: update to readme.gentoo-r1 eclass
    
    Package-Manager: portage-2.2.28
Comment 2 GLSAMaker/CVETool Bot gentoo-dev 2016-09-26 00:39:53 UTC 
This issue was resolved and addressed in
 GLSA 201609-01 at https://security.gentoo.org/glsa/201609-01
by GLSA coordinator Yury German (BlueKnight).