Race Condition Affecting kernel package, versions <0:4.14.219-161.340.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-3327354
  • published22 Feb 2023
  • disclosed15 Dec 2021

Introduced: 15 Dec 2021

CVE-2021-39648  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.219-161.340.amzn2 or higher.
This issue was patched in ALAS2-2021-1600.

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 gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel

CVSS Scores

version 3.1