Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [day] [month] [year] [list]
Date: Tue, 28 Nov 2017 23:32:37 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Eric Blake <eblake@...hat.com>
Subject: CVE-2017-15119 Qemu: DoS via large option request

   Hello,

Quick Emulator(Qemu) built with the Network Block Device(NBD) server support 
is vulnerable to a denial-of-service issue. It could occur if a client sent 
large option requests, making server waste CPU time on reading up to 4G bytes.

A client could use this flaw to keep the NBD server from serving other 
requests, resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1516925

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

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.