Use After Free Affecting kernel package, versions <0:4.14.173-137.228.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2-KERNEL-1678816
  • published27 Sept 2021
  • disclosed6 Feb 2020

Introduced: 6 Feb 2020

CVE-2020-8648  (opens in a new tab)
CWE-416  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.173-137.228.amzn2 or higher.
This issue was patched in ALAS2-2020-1405.

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.

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.

CVSS Scores

version 3.1