Memory Leak Affecting kernel-debuginfo package, versions <0:4.14.252-195.481.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELDEBUGINFO-1911200
  • published5 Nov 2021
  • disclosed23 Aug 2022

Introduced: 5 Nov 2021

CVE-2021-3764  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-debuginfo to version 0:4.14.252-195.481.amzn2 or higher.
This issue was patched in ALAS2-2021-1719.

NVD Description

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

A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1