Use After Free Affecting kernel-livepatch-4.14.355-276.639 package, versions <0:1.0-0.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.35% (29th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELLIVEPATCH414355276639-12079230
  • published21 Aug 2025
  • disclosed19 Nov 2024

Introduced: 19 Nov 2024

CVE-2024-50264  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-livepatch-4.14.355-276.639 to version 0:1.0-0.amzn2 or higher.
This issue was patched in ALAS2-2025-2843.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4.14.355-276.639 package and not the kernel-livepatch-4.14.355-276.639 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:

vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans

During loopback communication, a dangling pointer can be created in vsk->trans, potentially leading to a Use-After-Free condition. This issue is resolved by initializing vsk->trans to NULL.

CVSS Base Scores

version 3.1