Use After Free Affecting kernel-tools-debuginfo package, versions <0:4.14.285-215.501.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
3.13% (87th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEBUGINFO-2950660
  • published15 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: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.

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 Base Scores

version 3.1