Insufficient Verification of Data Authenticity Affecting linux-4.9 package, versions <4.9.210-1+deb9u1~deb8u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-DEBIAN8-LINUX49-571863
  • published26 May 2020
  • disclosed26 May 2020

Introduced: 26 May 2020

CVE-2020-10751  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade Debian:8 linux-4.9 to version 4.9.210-1+deb9u1~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.9 package and not the linux-4.9 package as distributed by Debian. See How to fix? for Debian: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.

References

CVSS Base Scores

version 3.1