Use After Free Affecting kernel package, versions <0:4.14.203-156.332.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1688436
  • published27 Sept 2021
  • disclosed14 Oct 2020

Introduced: 14 Oct 2020

CVE-2020-0423  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-667  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.203-156.332.amzn2 or higher.
This issue was patched in ALAS2-2020-1556.

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.

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A

CVSS Scores

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