Use After Free Affecting kernel-debuginfo-common-x86_64 package, versions <0:4.14.203-116.332.amzn1


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-AMZN201803-KERNELDEBUGINFOCOMMONX8664-1724462
  • 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)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-debuginfo-common-x86_64 to version 0:4.14.203-116.332.amzn1 or higher.
This issue was patched in ALAS-2020-1446.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo-common-x86_64 package and not the kernel-debuginfo-common-x86_64 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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

version 3.1