PT-2021-14880 · Odhcp6C +2 · Odhcp6C +2

Name of the Vulnerable Software and Affected Versions: OpenWrt versions 19.07.x through 19.07.6 Description: A routing loop can occur when IPv6 is used, generating excessive network traffic between an affected device and its upstream ISP's router. This happens when a link prefix route points to a...

OpenWrt Security Vulnerabilities

OpenWrt is a Linux operating system for embedded devices. A security vulnerability exists in OpenWrt 19.07.x before 19.07.7, which stems from the fact that when IPv6 is used, a routing loop may be created that generates excessive network traffic between an affected device and the router of its...

Security Advisory 2021-02-02-1 - netifd and odhcp6c routing loop on IPv6 point to point links (CVE-2021-22161)

DESCRIPTION In case a link prefix route points to a point-to-point link it can trigger a routing loop if the destination IPv6 address belongs to the prefix and is not a local IPv6 address. If such a packet is received and not directed to a local IPv6 address it will be routed back to the...