CVE-2017-6000 Qemu: crypto: memory leakage in qcrypto_ivgen_essiv_init

[P J P <ppandit () redhat com>]

  Hello,

Quick Emulator(Qemu) built with the Crypto block IV generator - essiv support 
is vulnerable to a host memory leakage issue. It could occur while 
initialising the crypto device in 'qcrypto_ivgen_essiv_init'.

A guest user/process could use this flaw to leak host memory resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-01/msg00295.html

Reference:
----------
  -> https://bugzilla.redhat.com/show_bug.cgi?id=1422656

This issue was reported by Li Qiang of 360.cn Inc.

'CVE-2017-6000' assigned via -> https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
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