Use After Free Affecting kernel6.12-debuginfo package, versions <0:6.12.29-33.102.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612DEBUGINFO-11470592
  • published5 Aug 2025
  • disclosed8 May 2025

Introduced: 8 May 2025

CVE-2025-37823  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-debuginfo to version 0:6.12.29-33.102.amzn2023 or higher.
This issue was patched in ALAS2023-2025-994.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-debuginfo package and not the kernel6.12-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.

CVSS Base Scores

version 3.1