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Bug 1400468 - (CVE-2016-9756) CVE-2016-9756 Kernel: kvm: stack memory information leakage
CVE-2016-9756 Kernel: kvm: stack memory information leakage
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161122,reported=2...
: Security
Depends On: 1400469
Blocks: 1398088
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Reported: 2016-12-01 05:13 EST by Prasad J Pandit
Modified: 2018-08-28 18:10 EDT (History)
32 users (show)

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Description Prasad J Pandit 2016-12-01 05:13:49 EST 
Linux kernel built with the Kernel-based Virtual Machine(CONFIG_KVM) support
is vulnerable to an information leakage issue. It could occur on x86 platform,
while emulating instructions in 32bit mode.

A user/process could use this flaw to leak host kernel memory bytes.

Upstream patch:
---------------
  -> https://git.kernel.org/linus/2117d5398c81554fbf803f5fd1dc55eb78216c0c

Reference:
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  -> http://www.openwall.com/lists/oss-security/2016/12/01/1
Comment 1 Prasad J Pandit 2016-12-01 05:14:58 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1400469]
Comment 2 Prasad J Pandit 2016-12-01 05:30:32 EST 
Statement:

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise
Linux 7.

This has been rated as having Low security impact and is not currently planned
to be addressed in future updates. For additional information, refer to the
Red Hat Enterprise Linux Life Cycle:
  -> https://access.redhat.com/support/policy/updates/errata/
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