Acceptance of Extraneous Untrusted Data With Trusted Data Affecting kernel-cross-headers package, versions <0:4.18.0-240.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-RHEL8-KERNELCROSSHEADERS-3826378
  • published26 Jul 2021
  • disclosed27 Apr 2020

Introduced: 27 Apr 2020

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

How to fix?

Upgrade RHEL:8 kernel-cross-headers to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL. See How to fix? for RHEL:8 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.

CVSS Scores

version 3.1