Vulnerability Description
The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.8.6 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092fIssue TrackingPatchVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0386.html
- http://rhn.redhat.com/errata/RHSA-2017-0387.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
- http://www.openwall.com/lists/oss-security/2016/11/22/3Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94459
- https://bugzilla.redhat.com/show_bug.cgi?id=1393350Issue Tracking
- https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937Issue TrackingPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092fIssue TrackingPatchVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0386.html
- http://rhn.redhat.com/errata/RHSA-2017-0387.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
- http://www.openwall.com/lists/oss-security/2016/11/22/3Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94459
- https://bugzilla.redhat.com/show_bug.cgi?id=1393350Issue Tracking
FAQ
What is CVE-2016-8630?
CVE-2016-8630 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a Mod...
How severe is CVE-2016-8630?
CVE-2016-8630 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-8630?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.