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Fencer Vulns
critical 9.8

CVE-2024-38439 json

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 FPLogi…

published 2024-06-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-37331

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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.

Patch / fix

  • netatalk netatalk 2.4.1, 3.1.19
  • netatalk Debian 14, Debian 13 3.1.18~ds-2

debian advisories DEBIAN-CVE-2024-38439

  • netatalk Ubuntu 20.04 LTS 3.1.12~ds-4ubuntu0.20.04.4
  • netatalk Ubuntu 22.04 LTS 3.1.12~ds-9ubuntu0.22.04.4
  • netatalk Ubuntu Pro 14.04 LTS 2.2.2-1ubuntu2.2+esm2
  • netatalk Ubuntu Pro 16.04 LTS 2.2.5-1ubuntu0.2+esm2
  • netatalk Ubuntu Pro 18.04 LTS 2.2.6-1ubuntu0.18.04.2+esm2
  • netatalk Ubuntu Pro 24.04 LTS 3.1.18~ds-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2024-38439

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • netatalk SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 3.1.18-3.25.1

suse advisories SUSE-SU-2024:2301-1

  • netatalk Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 3.1.19-r0

alpine advisories ALPINE-CVE-2024-38439

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-38439 updated

netatalk: multiple vulnerabilities

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Netatalk/netatalk/security/advisories/GHSA-8r68-857c-4rqc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • netatalk netatalk

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.