oss-security - CVE Request: Qemu: net: buffer overflow in MIPSnet emulator

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Message-ID: <alpine.LFD.2.20.1604112359170.31458@wniryva>
Date: Tue, 12 Apr 2016 00:01:48 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: "Bazhaniuk, Oleksandr" <oleksandr.bazhaniuk@...el.com>
Subject: CVE Request: Qemu: net: buffer overflow in MIPSnet emulator

   Hello,

Qemu emulator built with the MIPSnet controller emulator is vulnerable to a 
buffer overflow issue. It could occur while receiving network packets in 
mipsnet_receive(), if the guest NIC is configured to accept large(MTU) 
packets.

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

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1326082

This issue was discovered by Oleksandr Bazhaniuk of Advanced Threat Research
team at Intel 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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