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CVE-2024-38439

Netatalk buffer overflow

9.8 CRITICALPublic exploitEPSS 0.93%
  1. Published16 Jun 2024

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Netatalk≥ 2.0.0 < 2.4.1 · ≥ 3.0.0 < 3.1.19 · 3.2.0

Remediation

Fixed in
Netatalk≥ 2.4.1

References

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Frequently asked

Is CVE-2024-38439 being actively exploited?

CVE-2024-38439 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.93%.

How severe is CVE-2024-38439?

CVE-2024-38439 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.93% probability of exploitation.

Which products are affected by CVE-2024-38439?

Affected products include Netatalk.

How do I fix CVE-2024-38439?

Upgrade affected software to a fixed version, for example Netatalk 2.4.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-38439 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.