Vulnerability Description
An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether the ICMPv6 echo request packet's size is shorter than 8 bytes. If the size of the incoming ICMPv6 request packet is shorter than this, the operation that calculates the size of the ICMPv6 echo replies has an integer wrap around, leading to memory corruption and, eventually, Denial-of-Service in pico_icmp6_send_echoreply_not_frag in pico_icmp6.c.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Altran | Picotcp | <= 1.7.0 |
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-2020-17443?
CVE-2020-17443 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether the ICMPv6 echo request packet's size is shorter than 8 bytes. If the size of the incoming ...
How severe is CVE-2020-17443?
CVE-2020-17443 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-17443?
Check the references section above for vendor advisories and patch information. Affected products include: Altran Picotcp.