Use of a Broken or Risky Cryptographic Algorithm Affecting kernel package, versions <0:4.14.318-241.531.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-5746854
  • published29 Jun 2023
  • disclosed30 Jun 2023

Introduced: 29 Jun 2023

CVE-2023-1206  (opens in a new tab)
CWE-327  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.318-241.531.amzn2 or higher.
This issue was patched in ALAS2-2023-2108.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

CVSS Scores

version 3.1