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


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLS-1911173
  • published5 Nov 2021
  • disclosed4 Mar 2022

Introduced: 5 Nov 2021

CVE-2021-3744  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools 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-tools package and not the kernel-tools 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 in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

References

CVSS Base Scores

version 3.1