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List:       oss-security
Subject:    [oss-security] CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort
From:       P J P <ppandit () redhat ! com>
Date:       2017-06-29 8:51:52
Message-ID: alpine.LFD.2.20.1706291419220.1726 () wniryva
[Download RAW message or body]

   Hello,

Quick Emulator(Qemu) built with the Network Block Device(NBD) Server support 
is vulnerable to a crash via SIGPIPE signal. It could occur if a client aborts 
connection due to any failure during negotiation.

A remote user/process could use this flaw to crash the qemu-nbd server 
resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02693.html

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1466190


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