Use After Free Affecting kernel package, versions <0:4.14.231-173.360.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1697919
  • published27 Sept 2021
  • disclosed26 May 2021

Introduced: 26 May 2021

CVE-2020-25670  (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 0:4.14.231-173.360.amzn2 or higher.
This issue was patched in ALAS2-2021-1627.

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 vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.

CVSS Scores

version 3.1