CVE-2024-38439

Name: CVE-2024-38439
Creator: NVD / NIST
Published: 2024-06-16T13:15:53.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2024-38439 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[PASSWDLEN] to '\0' in FPLoginExt in login in etc/uams/uams_pam.c. 2.4.1 and 3.1.19 are also fixed versions.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[PASSWDLEN] to '\0' in FPLoginExt in login in etc/uams/uams_pam.c. 2.4.1 and 3.1.19 are also fixed versions.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.93%

56.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Netatalk	Netatalk	>= 2.0.0, < 2.4.1
Netatalk	Netatalk	>= 3.0.0, < 3.1.19
Netatalk	Netatalk	3.2.0

References

https://github.com/Netatalk/netatalk/blob/90d91a9ac9a7d6132ab7620d31c8c23400949206/etc/uams/uams_pam.c#L316Product
https://github.com/Netatalk/netatalk/issues/1096Broken Link, Not Applicable
https://github.com/Netatalk/netatalk/security/advisories/GHSA-8r68-857c-4rqcExploit, Vendor Advisory
https://netatalk.io/security/CVE-2024-38439Patch, Vendor Advisory
https://github.com/Netatalk/netatalk/blob/90d91a9ac9a7d6132ab7620d31c8c23400949206/etc/uams/uams_pam.c#L316Product
https://github.com/Netatalk/netatalk/issues/1096Broken Link, Not Applicable
https://github.com/Netatalk/netatalk/security/advisories/GHSA-8r68-857c-4rqcExploit, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/11/msg00026.html
https://netatalk.io/security/CVE-2024-38439Patch, Vendor Advisory

Timeline

Published: Jun 16, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-38439?

How severe is CVE-2024-38439?

CVE-2024-38439 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2024-38439?

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-2024-38439?

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

Scan your code now

Source: NVD / NIST