oss-security - CVE request Qemu: net: rtl8139: infinite loop while transmit in C+ mode

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Message-ID: <alpine.LFD.2.20.1610241606440.6422@wniryva>
Date: Mon, 24 Oct 2016 16:10:24 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Andrew Henderson <hendersa@...ulus.org>
Subject: CVE request Qemu: net: rtl8139: infinite loop while transmit in C+
 mode

   Hello,

Quick Emulator(Qemu) built with the RTL8139 ethernet controller emulation 
support is vulnerable to an infinite loop issue. It could occur while 
transmitting packets in C+ mode of operation.

A privileged user inside guest could use this flaw to consume excessive CPU 
cycles on the host, resulting in DoS situation.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg05495.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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