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Use of Insufficiently Random Values The advisory has been revoked - it doesn't affect any version of package kernel-headers  (opens in a new tab)

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EPSS
6.85% (94th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELHEADERS-1960735
  • published19 Oct 2021
  • disclosed26 Aug 2021
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Introduced: 26 Aug 2021

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

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by Centos.

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.

References