CVE-2017-2596

 

Published at: - 06-02-2017 07:59

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=1417812
• [oss-security] 20170131 CVE-2017-2596 Kernel: kvm: page reference leakage in handle_vmon-Mailing List, Patch, Third Party Advisory
• 95878-Third Party Advisory, VDB Entry
• DSA-3791-
• RHSA-2017:2077-
• RHSA-2017:1842-

 

Keywords

NVD

 

CVE-2017-2596

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures