Use After Free Affecting kernel package, versions <0:4.14.353-270.569.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-11445348
  • published5 Aug 2025
  • disclosed23 Aug 2024

Introduced: 23 Aug 2024

CVE-2024-43883  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.353-270.569.amzn2 or higher.
This issue was patched in ALAS2-2025-2777.

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 the Linux kernel, the following vulnerability has been resolved:

usb: vhci-hcd: Do not drop references before new references are gained

At a few places the driver carries stale pointers to references that can still be used. Make sure that does not happen. This strictly speaking closes ZDI-CAN-22273, though there may be similar races in the driver.

CVSS Base Scores

version 3.1