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Bug 602634 (CVE-2016-9923) - <app-emulation/qemu-2.8.0: char: use after free issue in char backend (CVE-2016-9923)
Summary: <app-emulation/qemu-2.8.0: char: use after free issue in char backend (CVE-20...
Status: RESOLVED FIXED
Alias: CVE-2016-9923
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: CVE-2016-9907 604010
Blocks:
  Show dependency tree
 
Reported: 2016-12-14 10:55 UTC by Agostino Sarubbo
Modified: 2017-01-23 03:12 UTC (History)
1 user (show)

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Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2016-12-14 10:55:54 UTC 
From ${URL} :

Quick Emulator(Qemu) built with the 'chardev' backend support is vulnerable to 
a use after free issue. It could occur while hotplug and unplugging the device 
in the guest.

A guest user/process could use this flaw to crash a Qemu process on the host 
resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg05597.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 SpanKY gentoo-dev 2016-12-29 19:48:32 UTC 
this is in the 2.8.0 release
Comment 2 Thomas Deutschmann (RETIRED) gentoo-dev 2017-01-01 19:14:56 UTC 
Stabilization will be happen as part of bug 601824.
Comment 3 Thomas Deutschmann (RETIRED) gentoo-dev 2017-01-21 22:36:24 UTC 
Added to existing GLSA request.
Comment 4 GLSAMaker/CVETool Bot gentoo-dev 2017-01-23 03:12:15 UTC 
This issue was resolved and addressed in
 GLSA 201701-49 at https://security.gentoo.org/glsa/201701-49
by GLSA coordinator Aaron Bauman (b-man).