7.5
CWE
125
Advisory Published
Updated

CVE-2020-17468

First published: Fri Dec 11 2020(Updated: )

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.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
<=4.6.4
Butok Fnet<=4.6.4
Multiple (open source) picoTCP-NG, Version 1.7.0 and prior
Multiple (open source) picoTCP (EOL), Version 1.7.0 and prior
Multiple (open source) FNET, Version 4.6.3
Multiple (open source) Nut/Net, Version 5.1 and prior

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Parent vulnerabilities

(Appears in the following advisories)

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