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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...
Alias: CVE-2016-9923
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa cve]
Depends on: CVE-2016-9907 604010
  Show dependency tree
Reported: 2016-12-14 10:55 UTC by Agostino Sarubbo
Modified: 2017-01-23 03:12 UTC (History)
1 user (show)

See Also:
Package list:
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:

@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
by GLSA coordinator Aaron Bauman (b-man).