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Date: Tue, 31 Jan 2017 13:23:56 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
Subject: CVE-2017-2596 Kernel: kvm: page reference leakage in handle_vmon
Hello,
Linux kernel built with the KVM virtualisation support(CONFIG_KVM), with
nested virtualisation(nVMX) feature enabled(nested=1), is vulnerable to host
memory leakage issue. It could occur while emulating VMXON instruction in
'handle_vmon'.
A L1 guest user could use this flaw to leak host memory potentially resulting
in DoS.
Upstream patch:
---------------
-> https://www.spinics.net/lists/kvm/msg144319.html
Reference:
----------
-> https://bugzilla.redhat.com/show_bug.cgi?id=1417812
'CVE-2017-2596' is assigned to this issue by Red Hat 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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