CVE-2021-3655

Description

A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.

Categories

3.3
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Third-Party Advisory redhat.com Third-Party Advisory debian.org Third-Party Advisory debian.org
Affected: n/a kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1984024 issue tracking third party advisory patch
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-3655?
CVE-2021-3655 has been scored as a low severity vulnerability.
How to fix CVE-2021-3655?
To fix CVE-2021-3655, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3655 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3655 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3655?
CVE-2021-3655 affects n/a kernel.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.