CVE-2017-12168
MEDIUM
6
CVSS Score
Published: September 20, 2017 at 08:00 AM UTC
Updated: June 17, 2026 at 01:02 AM UTC
2 products affected across 2 vendorsLinux KernelKernel
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Severity
MEDIUM6
Exploit prediction
EPSS 0.4%
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).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 4.8.10
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11
- https://bugzilla.redhat.com/show_bug.cgi?id=1492984
- https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9
References (4)
x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1492984x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-617
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