oss-security - CVE-2015-5279 Qemu: net: add checks to validate ring buffer pointers

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Message-ID: <alpine.LFD.2.20.1509151850350.14460@wniryva>
Date: Tue, 15 Sep 2015 18:52:12 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Qinghao Tang <luodalongde@...il.com>
Subject: CVE-2015-5279 Qemu: net: add checks to validate ring buffer
 pointers

   Hello,

Qemu emulator built with the NE2000 NIC emulation support is vulnerable to a 
heap buffer overflow issue. It could occur when receiving packets over the 
network.

A privileged user inside guest could use this flaw to crash the Qemu instance 
or potentially execute arbitrary code on the host.

Upstream fix:
-------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg03984.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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