CVE-2024-0639

Name: CVE-2024-0639
Creator: NVD / NIST
Published: 2024-01-17T16:15:46.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2024-0639 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.16%

5.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 6.4.16
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0

References

https://access.redhat.com/security/cve/CVE-2024-0639Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2258754Issue Tracking, Patch
https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9aPatch
https://access.redhat.com/security/cve/CVE-2024-0639Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2258754Issue Tracking, Patch
https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9aPatch

Timeline

Published: Jan 17, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-0639?

How severe is CVE-2024-0639?

CVE-2024-0639 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2024-0639?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-0639?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST