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Unrated severityNVD Advisory· Published Feb 18, 2022· Updated Aug 3, 2024

CVE-2021-20322

CVE-2021-20322

Description

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.

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Affected products

287

Patches

Vulnerability mechanics

References

9

News mentions

0

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