Resource Exhaustion Affecting kernel-rt-debug-kvm package, versions <0:3.10.0-1160.21.1.rt56.1158.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELRTDEBUGKVM-2182250
  • published26 Jul 2021
  • disclosed24 Jan 2016

Introduced: 24 Jan 2016

CVE-2021-20265  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-rt-debug-kvm to version 0:3.10.0-1160.21.1.rt56.1158.el7 or higher.

NVD Description

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

A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1