What’s Vulnerable › Vulnerabilities

CVE-2017-2596

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-06 · updated 2026-06-17
• Weakness: CWE-772

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.

Affected products

• Linux kernel: through 4.9.8

References

• http://www.debian.org/security/2017/dsa-3791
• http://www.openwall.com/lists/oss-security/2017/01/31/4
• http://www.securityfocus.com/bid/95878
• https://access.redhat.com/errata/RHSA-2017:1842
• https://access.redhat.com/errata/RHSA-2017:2077
• https://bugzilla.redhat.com/show_bug.cgi?id=1417812
• http://www.debian.org/security/2017/dsa-3791
• http://www.openwall.com/lists/oss-security/2017/01/31/4
• http://www.securityfocus.com/bid/95878
• https://access.redhat.com/errata/RHSA-2017:1842
• https://access.redhat.com/errata/RHSA-2017:2077
• https://bugzilla.redhat.com/show_bug.cgi?id=1417812

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