CVE-2025-21762 Affecting kernel-debuginfo package, versions <0:4.14.355-196.618.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNELDEBUGINFO-9749289
  • published18 Apr 2025
  • disclosed27 Feb 2025

Introduced: 27 Feb 2025

CVE-2025-21762  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-debuginfo to version 0:4.14.355-196.618.amzn1 or higher.
This issue was patched in ALAS-2025-1970.

NVD Description

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

In the Linux kernel, the following vulnerability has been resolved:

arp: use RCU protection in arp_xmit()

arp_xmit() can be called without RTNL or RCU protection.

Use RCU protection to avoid potential UAF.

CVSS Base Scores

version 3.1