Use of Insufficiently Random Values Affecting kernel-docs package, versions <5.3.18-24.96.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.49% (77th percentile)

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  • Snyk IDSNYK-SLES152-KERNELDOCS-2651823
  • published14 Apr 2022
  • disclosed6 Dec 2021

Introduced: 6 Dec 2021

CVE-2021-20322  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-docs to version 5.3.18-24.96.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-docs package and not the kernel-docs package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.

CVSS Scores

version 3.1