Bug 1393350 (CVE-2016-8630) - CVE-2016-8630 kernel: kvm: x86: NULL pointer dereference during instruction decode
Summary: CVE-2016-8630 kernel: kvm: x86: NULL pointer dereference during instruction d...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-8630
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1393358 1395805 1395806 1395807 1395808
Blocks: 1389721
TreeView+ depends on / blocked
 
Reported: 2016-11-09 11:39 UTC by Adam Mariš
Modified: 2021-02-17 03:03 UTC (History)
31 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-08 03:01:53 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:0386 0 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2017-03-02 22:06:10 UTC
Red Hat Product Errata RHSA-2017:0387 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2017-03-02 22:06:22 UTC

Description Adam Mariš 2016-11-09 11:39:01 UTC 
Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform,
when emulating an undefined instruction.

A user/process could use this flaw to crash the host kernel resulting in DoS.

Upstream patch:
---------------
  -> https://git.kernel.org/linus/d9092f52d7e61dd1557f2db2400ddb430e85937e

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/11/22/3
Comment 2 Adam Mariš 2016-11-09 11:57:10 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1393358]
Comment 5 Prasad Pandit 2016-11-22 07:57:33 UTC 
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. Future kernel updates for Red Hat Enterprise Linux 7 may address this
issue.
Comment 9 errata-xmlrpc 2017-03-02 17:14:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0386 https://rhn.redhat.com/errata/RHSA-2017-0386.html
Comment 10 errata-xmlrpc 2017-03-02 17:23:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0387 https://rhn.redhat.com/errata/RHSA-2017-0387.html
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