Race Condition Affecting kernel package, versions <0:4.14.198-152.320.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-1684482
  • published27 Sept 2021
  • disclosed13 Sept 2020

Introduced: 13 Sep 2020

CVE-2020-25285  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-787  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.198-152.320.amzn2 or higher.
This issue was patched in ALAS2-2020-1495.

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 race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.

CVSS Scores

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