SB2014111007 - Resource management error in Linux kernel

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Main Vulnerability Database SB2014111007

SB2014111007 - Resource management error in Linux kernel

Published: November 10, 2014 Updated: August 10, 2020

Security Bulletin ID SB2014111007
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Resource management error (CVE-ID: CVE-2014-3690)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.


Remediation

Install update from vendor's website.

References