CVE-2021-3772

Description

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2000694 issue tracking third party advisory patch
https://ubuntu.com/security/CVE-2021-3772 third party advisory patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df mailing list patch vendor advisory
https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df third party advisory patch
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html third party advisory mailing list
https://www.debian.org/security/2022/dsa-5096 third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpujul2022.html third party advisory patch
https://security.netapp.com/advisory/ntap-20221007-0001/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3772?
CVE-2021-3772 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3772?
To fix CVE-2021-3772, 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-2021-3772 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3772 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-2021-3772?
CVE-2021-3772 affects n/a kernel.
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