CVE-2016-9588
First published: Thu Dec 15 2016(Updated: )
arch/x86/kvm/vmx.c in the Linux kernel through 4.9 mismanages the #BP and #OF exceptions, which allows guest OS users to cause a denial of service (guest OS crash) by declining to handle an exception thrown by an L2 guest.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.9 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ef85b67385436ddc1998f45f1d6a210f935b3388
- http://www.debian.org/security/2017/dsa-3804
- http://www.openwall.com/lists/oss-security/2016/12/15/3
- http://www.securityfocus.com/bid/94933
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://bugzilla.redhat.com/show_bug.cgi?id=1404924
- https://github.com/torvalds/linux/commit/ef85b67385436ddc1998f45f1d6a210f935b3388
- https://usn.ubuntu.com/3822-1/
- https://usn.ubuntu.com/3822-2/
- https://launchpad.net/bugs/cve/CVE-2016-9588
- https://www.spinics.net/lists/kvm/msg142495.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1404925
- https://git.kernel.org/linus/ef85b67385436ddc1998f45f1d6a210f935b3388
- https://security-tracker.debian.org/tracker/CVE-2016-9588
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9588
- https://nvd.nist.gov/vuln/detail/CVE-2016-9588
- https://ubuntu.com/security/CVE-2016-9588
Frequently Asked Questions
What is CVE-2016-9588?
CVE-2016-9588 is a vulnerability in the Linux kernel that mismanages the #BP and #OF exceptions, allowing guest OS users to cause a denial of service (guest OS crash).
How does CVE-2016-9588 affect Linux kernel?
CVE-2016-9588 affects the Linux kernel version through 4.9.
What is the severity level of CVE-2016-9588?
CVE-2016-9588 has a severity level of medium.
How can I fix CVE-2016-9588?
To fix CVE-2016-9588, update your Linux kernel to version 4.9 or later.
Where can I find more information about CVE-2016-9588?
You can find more information about CVE-2016-9588 at the following references: [Reference 1](https://www.spinics.net/lists/kvm/msg142495.html), [Reference 2](http://www.openwall.com/lists/oss-security/2016/12/15/3), [Reference 3](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1404925).
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