Use After Free Affecting kernel package, versions <0:4.14.285-147.501.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.19% (59th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-2945342
  • published8 Jul 2022
  • disclosed2 Jun 2022

Introduced: 2 Jun 2022

CVE-2022-32250  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:4.14.285-147.501.amzn1 or higher.
This issue was patched in ALAS-2022-1604.

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:2018.03 relevant fixed versions and status.

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

References

CVSS Scores

version 3.1