Vulnerability Description
An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Altran | Picotcp | <= 1.7.0 |
| Microchip | Mplab Harmony | >= 3.0.0, < 3.7.0 |
Related Weaknesses (CWE)
References
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party AdvisoryUS Government Resource
- https://www.kb.cert.org/vuls/id/815128Third Party AdvisoryUS Government Resource
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party AdvisoryUS Government Resource
- https://www.kb.cert.org/vuls/id/815128Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2020-17441?
CVE-2020-17441 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an...
How severe is CVE-2020-17441?
CVE-2020-17441 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-17441?
Check the references section above for vendor advisories and patch information. Affected products include: Altran Picotcp, Microchip Mplab Harmony.