CVE-2017-2596
MediumThe 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 score
6.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness type
CWE-772CVE-2017-2596 is a Missing Release of Resource after Effective Lifetime vulnerability
What is Missing Release of Resource after Effective Lifetime?
The product does not release a resource after its effective lifetime has ended. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2017-2596 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Debian Securityhttp://www.debian.org/security/2017/dsa-3791
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Securityfocushttp://www.securityfocus.com/bid/95878Third Party Advisory VDB Entry
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PatchKernel patch commithttp://www.openwall.com/lists/oss-security/2017/01/31/4
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PatchKernel patch commithttps://bugzilla.redhat.com/show_bug.cgi?id=1417812
Frequently asked questions
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What is CVE-2017-2596?
CVE-2017-2596 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 , classified as a Missing Release of Resource after Effective Lifetime flaw (CWE-772) . CVE-2017-2596 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2017-2596?
CVE-2017-2596 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H. -
Is there a patch available for CVE-2017-2596?
No patch is currently available for CVE-2017-2596. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2017-2596 actively exploited?
No — CVE-2017-2596 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Missing Release of Resource after Effective Lifetime (CWE-772)?
The product does not release a resource after its effective lifetime has ended. View CWE-772 on MITRE CWE →