Acceptance of Extraneous Untrusted Data With Trusted Data Affecting kernel package, versions <0:4.14.181-140.257.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1680121
  • published27 Sept 2021
  • disclosed26 May 2020

Introduced: 26 May 2020

CVE-2020-10751  (opens in a new tab)
CWE-349  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.181-140.257.amzn2 or higher.
This issue was patched in ALAS2-2020-1431.

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:2 relevant fixed versions and status.

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

References

CVSS Scores

version 3.1