Improper Validation of Integrity Check Value Affecting kernel package, versions <0:4.14.256-197.484.amzn2


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.88% (84th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-2315631
  • published11 Dec 2021
  • disclosed2 Mar 2022

Introduced: 11 Dec 2021

CVE-2021-3772  (opens in a new tab)
CWE-354  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.256-197.484.amzn2 or higher.
This issue was patched in ALAS2-2021-1727.

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 flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

CVSS Scores

version 3.1