oss-security - CVE Request Qemu: Information leak in vmxnet3_complete

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Date: Fri, 12 Aug 2016 00:53:17 +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: Information leak in vmxnet3_complete_packet

   Hello,

Quick Emulator(Qemu) built with the VMWARE VMXNET3 NIC device support is 
vulnerable to an information leakage issue. It could occur while processing 
transmit(tx) queue, when it reaches the end of packet.

A privileged user inside guest could use this leak host memory bytes to a 
guest.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg02108.html

Reference:
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1366369

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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