VulnerabilityModified
CVE-2017-2596
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…
MEDIUM 6.5EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.40% probability · 34th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-772
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/31/4Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/95878Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://bugzilla.redhat.com/show_bug.cgi?id=1417812Issue Tracking, Patch
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/31/4Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/95878Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://bugzilla.redhat.com/show_bug.cgi?id=1417812Issue Tracking, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.