Use After Free Affecting kernel-tools-debuginfo package, versions <0:4.14.273-207.502.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEBUGINFO-11444275
  • published5 Aug 2025
  • disclosed22 Aug 2024

Introduced: 22 Aug 2024

CVE-2022-48911  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-debuginfo to version 0:4.14.273-207.502.amzn2 or higher.
This issue was patched in ALAS2-2022-1768.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-debuginfo package and not the kernel-tools-debuginfo 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:

netfilter: nf_queue: fix possible use-after-free

Eric Dumazet says: The sock_hold() side seems suspect, because there is no guarantee that sk_refcnt is not already 0.

On failure, we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change

CVSS Base Scores

version 3.1