CVE-2022-49561 Affecting kernel-tools-debuginfo package, versions <0:4.14.285-215.501.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEBUGINFO-9513565
  • published26 Mar 2025
  • disclosed26 Feb 2025

Introduced: 26 Feb 2025

CVE-2022-49561  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-debuginfo to version 0:4.14.285-215.501.amzn2 or higher.
This issue was patched in ALAS2-2022-1813.

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: conntrack: re-fetch conntrack after insertion

In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry.

This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.

CVSS Base Scores

version 3.1