Vulnerability Description
The access_pmu_evcntr function in arch/arm64/kvm/sys_regs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service (assertion failure and host OS crash) by accessing the Performance Monitors Cycle Count Register (PMCCNTR).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.8.10 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7aIssue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11Release NotesVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1492984Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aaIssue TrackingPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7aIssue TrackingPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11Release NotesVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1492984Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aaIssue TrackingPatchThird Party Advisory
FAQ
What is CVE-2017-12168?
CVE-2017-12168 is a vulnerability with a CVSS score of 6.0 (MEDIUM). The access_pmu_evcntr function in arch/arm64/kvm/sys_regs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service (assertion failure and host OS crash) by...
How severe is CVE-2017-12168?
CVE-2017-12168 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-12168?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.