Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!

Bug 593284 (CVE-2016-7170)

Summary: <app-emulation/qemu-2.7.0-r2: vmware_vga: OOB stack memory access when processing svga command (CVE-2016-7170)
Product: Gentoo Security Reporter: Agostino Sarubbo <ago>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: minor CC: qemu+disabled
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: http://www.openwall.com/lists/oss-security/2016/09/09/4
Whiteboard: B3 [glsa cve]
Package list:
Runtime testing required: ---
Bug Depends on: 593038    
Bug Blocks:    

Description Agostino Sarubbo gentoo-dev 2016-09-09 13:25:11 UTC
From ${URL} :

Quick Emulator(Qemu) built with the VMware-SVGA "chipset" emulation support is 
vulnerable to an OOB stack memory write issue. It could occur while processing 
VGA commands in 'vmsvga_fifo_run' routine.

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

Upstream fix:
-------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html



@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 2016-09-10 02:25:47 UTC
Stabilization on bug #593038


commit eaeffb27d67769a089170dcc45ea3e8a4efb645b
Author: Matthias Maier <tamiko@gentoo.org>
Date:   Fri Sep 9 21:23:22 2016 -0500

    app-emulation/qemu: apply fix for CVE-2016-7170, bug #593284
    
    Package-Manager: portage-2.2.28
Comment 2 Yury German Gentoo Infrastructure gentoo-dev 2016-09-25 23:22:36 UTC
Added to an existing GLSA Request.
Maintainer(s), please drop the vulnerable version(s). - Cleanup in bug # 593038
Comment 3 GLSAMaker/CVETool Bot gentoo-dev 2016-09-26 00:39:45 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).