CVE-2024-38439

Exp

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.

Published: 2024-06-16 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-38439 is rated High Exploit Risk (74.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.93%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-38439

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-38439

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.53% 0.93% +0.40%
2 2026-04-21 0.69% 0.53% -0.16%
3 2026-04-20 — 0.69% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-38439

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-38439

OS Trackers for CVE-2024-38439

vendor priority summary link
alpine — CVE-2024-38439: 1 source package rows (netatalk); 4 state rows across 4 repos (3.20-community, 3.21-community, 3.22-community, edge-community); fixed 4, open 0. https://security.alpinelinux.org/vuln/CVE-2024-38439
debian not yet assigned CVE-2024-38439 not yet assigned priority: Debian including 1 source packages (netatalk), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2024-38439
suse high CVE-2024-38439 severity important: SUSE including 3 source package names (libatalk0-3.1.18-3.25.1, netatalk-3.1.18-3.25.1, netatalk-devel-3.1.18-3.25.1), 6 product×package rows across 2 product lines (SUSE Linux Enterprise Software Development Kit 12 SP5, SUSE Linux Enterprise Workstation Extension 12 SP5): Fixed 6. https://www.suse.com/security/cve/CVE-2024-38439/
ubuntu medium CVE-2024-38439 medium priority: Ubuntu including 1 source packages (netatalk), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 7, not-affected 3, ignored 1. https://ubuntu.com/security/CVE-2024-38439

Affected software / configurations for CVE-2024-38439

Vendor Product Version Raw CPE
netatalk netatalk >= 2.0.0, < 2.4.1 cpe:2.3:a:netatalk:netatalk:*:*:*:*:*:*:*:*
netatalk netatalk >= 3.0.0, < 3.1.19 cpe:2.3:a:netatalk:netatalk:*:*:*:*:*:*:*:*
netatalk netatalk 3.2.0 cpe:2.3:a:netatalk:netatalk:3.2.0:*:*:*:*:*:*:*

References for CVE-2024-38439

cvelogic Threat Intelligence