An issue was discovered in picoTCP 1.7.0.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
An issue was discovered in picoTCP 1.7.0. The code for parsing the hop-by-hop IPv6 extension headers does not validate the bounds of the extension header length value, which may result in Integer Wraparound. Therefore, a crafted extension header length value may cause Denial-of-Service because it affects the loop in which the extension headers are parsed in pico_ipv6_process_hopbyhop() in pico_ipv6.c.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-17442
- 2026-10-03 Alias added: GHSA-x2mc-h9jg-q83c
References
More Altran Picotcp vulnerabilities
- TI-2020-14887 An issue was discovered in picoTCP through 1.7.0. CVSS 3.1CRITICAL 9.8
- TI-2021-12789 Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in… CVSS 3.1CRITICAL 9.8
- TI-2020-13207 An issue was discovered in picoTCP 1.7.0. CVSS 3.1CRITICAL 9.1
- TI-2020-14890 An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. CVSS 3.1CRITICAL 9.1
- TI-2017-14528 picoTCP (versions 1.7.0 - 1.5.0) is vulnerable to stack buffer overflow resulting in code… CVSS 3.0CRITICAL 9.8
- TI-2023-14300 Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service)… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-17442 · CVE Program
- CVE-2020-17442 · NVD
- FIRST EPSS
- GHSA-x2mc-h9jg-q83c · GitHub Advisory Database · CC BY 4.0
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