Double Free Affecting kernel-rt-trace-kvm package, versions <0:3.10.0-1160.59.1.rt56.1200.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.49% (39th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELRTTRACEKVM-2025167
  • published26 Jul 2021
  • disclosed25 May 2021

Introduced: 25 May 2021

CVE-2021-3564  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-rt-trace-kvm to version 0:3.10.0-1160.59.1.rt56.1200.el7 or higher.

NVD Description

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

A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.

CVSS Base Scores

version 3.1