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Missing Release of Resource after Effective Lifetime Affecting kernel-uek-devel package, versions <0:4.1.12-61.1.33.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2518757
  • published10 Apr 2022
  • disclosed6 Feb 2017
Report a new vulnerability Found a mistake?

Introduced: 6 Feb 2017

CVE-2017-2596  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-61.1.33.el7uek or higher.
This issue was patched in ELSA-2017-3533.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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.