Vulnerability Description
An issue was discovered in FNET through 4.6.4. The code for processing the hop-by-hop header (in the IPv6 extension headers) doesn't check for a valid length of an extension header, and therefore an out-of-bounds read can occur in _fnet_ip6_ext_header_handler_options in fnet_ip6.c, leading to Denial-of-Service.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Butok | Fnet | <= 4.6.4 |
Related Weaknesses (CWE)
References
- http://fnet.sourceforge.net/manual/fnet_history.htmlRelease NotesThird Party Advisory
- 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
- http://fnet.sourceforge.net/manual/fnet_history.htmlRelease NotesThird Party Advisory
- 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-2020-17468?
CVE-2020-17468 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in FNET through 4.6.4. The code for processing the hop-by-hop header (in the IPv6 extension headers) doesn't check for a valid length of an extension header, and therefore an o...
How severe is CVE-2020-17468?
CVE-2020-17468 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-2020-17468?
Check the references section above for vendor advisories and patch information. Affected products include: Butok Fnet.