Excessive Platform Resource Consumption within a Loop Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-305.rt7.72.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-3996748
  • published15 Mar 2023
  • disclosed9 Jan 2021

Introduced: 9 Jan 2021

CVE-2023-1390  (opens in a new tab)
CWE-1050  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-305.rt7.72.el8 or higher.
This issue was patched in RHSA-2021:1739.

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 RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

CVSS Scores

version 3.1