CVE & CISA-KEV Catalog

CVE-2024-0639

MEDIUM
5.5
CVSS v3
NVD

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.

CWE-833CWE-667

How to fix

Remediation Available
bpftoolAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
bpftool-debuginfoAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernelAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-debuginfoAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-debuginfo-common-aarch64Amazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
kernel-debuginfo-common-x86_64Amazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
kernel-develAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-headersAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-libbpfAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-libbpf-develAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-libbpf-staticAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-livepatch-4.14.322-244.536Amazon
Fixed in:0:1.0-0.amzn2
kernel-livepatch-6.1.41-63.109Amazon
Fixed in:0:1.0-0.amzn2023
Fixed in:0:1.0-0.amzn2023
kernel-toolsAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-tools-debuginfoAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
kernel-tools-develAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
perfAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
perf-debuginfoAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
python-perfAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
python-perf-debuginfoAmazon
Fixed in:0:4.14.322-244.536.amzn2
Fixed in:0:4.14.322-244.536.amzn2
python3-perfAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
python3-perf-debuginfoAmazon
Fixed in:0:6.1.41-63.109.amzn2023
Fixed in:0:6.1.41-63.109.amzn2023
linuxDebian
Fixed in:6.1.52-1CVE-2024-0639
Fixed in:6.4.4-1CVE-2024-0639
Fixed in:6.4.4-1CVE-2024-0639
linuxUbuntu
Fixed in:4.15.0-224.236USN-6740-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-awsUbuntu
Fixed in:4.15.0-1167.180USN-6740-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-aws-hweUbuntu
Fixed in:4.15.0-1167.180~16.04.1USN-6740-1

This Ubuntu release reached end-of-life on 2021-04-02.

linux-azureUbuntu
Fixed in:4.15.0-1176.191~14.04.1USN-6740-1

This Ubuntu release reached end-of-life on 2019-04-02.

Fixed in:4.15.0-1176.191~16.04.1USN-6740-1

This Ubuntu release reached end-of-life on 2021-04-02.

linux-azure-4.15Ubuntu
Fixed in:4.15.0-1176.191USN-6740-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-gcpUbuntu
Fixed in:4.15.0-1161.178~16.04.1USN-6740-1

This Ubuntu release reached end-of-life on 2021-04-02.

linux-gcp-4.15Ubuntu
Fixed in:4.15.0-1161.178USN-6740-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.18%probability of exploitation in 30 days
7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Third-Party Advisory1
Other references1

Related Vulnerabilities

Other CWE-833 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-21313Medium6.51.6%-Fix
CVE-2021-1622High8.61.0%-Fix
CVE-2026-44579High7.50.7%-Fix
CVE-2025-1713High7.50.7%-Fix
CVE-2022-43767High7.50.7%-Fix
CVE-2024-8447Medium5.90.6%-Fix

Common questions

How do I fix CVE-2024-0639?

Published advisories record a fix for 57 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2024-0639 being actively exploited?

Not that we know of. CVE-2024-0639 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.18% is the estimated probability that it will be exploited in the next 30 days. That is higher than 7% of all scored CVEs.

How severe is CVE-2024-0639?

CVE-2024-0639 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-0639 affect?

Published advisories record a fix for bpftool (Amazon), bpftool-debuginfo (Amazon), kernel (Amazon), kernel-debuginfo (Amazon), and 53 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2024-0639 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-21.