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:
Doc Type: If docs needed, set a value
Doc Text:
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. An attacker could use this flaw to crash the host kernel resulting in DoS.
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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