oss-security - CVE request Qemu: char: use after free issue in char backend

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Message-ID: <alpine.LFD.2.20.1612081659560.28510@wniryva>
Date: Thu, 8 Dec 2016 17:13:36 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: liqiang6-s@....cn
Subject: CVE request Qemu: char: use after free issue in char backend

   Hello,

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

Thank you
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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