Vulnerability in Linux Kernel
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 mishandling of page references.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)
- www.openwall.com/lists/oss-security/2017/01/31/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/95878 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:2077 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:1842 (vendor-advisory)
- www.debian.org/security/2017/dsa-3791 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-2596?
- CVE-2017-2596 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2017-02-06.
- How severe is CVE-2017-2596?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2017-2596 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.