oss-security - CVE request Qemu: net: eepro100 memory leakage at device unplug

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Message-ID: <alpine.LFD.2.20.1610280151370.5357@wniryva>
Date: Fri, 28 Oct 2016 01:54:24 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE request Qemu: net: eepro100 memory leakage at device unplug

   Hello,

Quick Emulator(Qemu) built with the i8255x (PRO100) NIC emulation support is 
vulnerable to a memory leakage issue. It could occur while unplugging the 
device, and doing so repeatedly would result in leaking host memory affecting, 
other services on the host.

A privileged user inside guest could use this flaw to cause a DoS on the host 
and/or potentially crash the Qemu process on the host.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03024.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1389538

This issue was reported by Li Qiang of 360.cn Inc.

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

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