The code that processes DNS responses in uIP through 1.0, as used in Contiki and…
Priority MEDIUM 40CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.
Why it matters now
EPSS 0.02434 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uip_project:uip:*:*:*:*:*:*:*:* | up to 1.0 | Vulnerable | Uip Project |
| cpe:2.3:o:contiki-ng:contiki-ng:-:*:*:*:*:*:*:* | not specified by NVD | Running on | contiki-ng |
| cpe:2.3:o:contiki-os:contiki:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Contiki-os |
- cpe:2.3:a:uip_project:uip:*:*:*:*:*:*:*:* Versions up to 1.0 Vulnerable ·Uip Project
- cpe:2.3:o:contiki-ng:contiki-ng:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·contiki-ng
- cpe:2.3:o:contiki-os:contiki:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Contiki-os
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-24334
- 2026-10-03 Alias added: GHSA-38jp-4v3p-cc3q
References
More Uip Project Uip vulnerabilities
- TI-2020-13204 An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. CVSS 3.1CRITICAL 9.8
- TI-2020-13205 An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. CVSS 3.1HIGH 8.3
- TI-2020-13203 An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. CVSS 3.1HIGH 8.2
- TI-2020-10956 An issue was discovered in Contiki through 3.0. CVSS 3.1HIGH 7.5
- TI-2020-14884 An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG. CVSS 3.1HIGH 7.5
- TI-2020-13206 An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. CVSS 3.1HIGH 7.5
Sources
- CVE-2020-24334 · CVE Program
- CVE-2020-24334 · NVD
- FIRST EPSS
- GHSA-38jp-4v3p-cc3q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences