Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow…
Priority HIGH 82CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00931 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38439
- 2026-10-03 Alias added: GHSA-pcmr-ff73-xcj5
References
More Netatalk vulnerabilities
- TI-2018-01076 Out-of-bounds write in Netatalk CVSS 3.1CRITICAL 9.8
- TI-2024-25690 Netatalk before 3.2.1 has an off-by-one error, and resultant heap-based buffer overflow… CVSS 3.1HIGH 7.5
- TI-2022-22254 Netatalk through 3.1.13 has an afp_getappl heap-based buffer overflow resulting in code… CVSS 3.1HIGH 7.8
- TI-2022-21402 Heap-based buffer overflow in Netatalk CVSS 3.1CRITICAL 9.8
- TI-2022-07290 Improper handling of exceptional conditions in Netatalk CVSS 3.1CRITICAL 9.8
- TI-2024-25691 Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-38439 · CVE Program
- CVE-2024-38439 · NVD
- FIRST EPSS
- GHSA-pcmr-ff73-xcj5 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38439 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences