Unrated severityNVD Advisory· Published Feb 7, 2021· Updated Aug 3, 2024
CVE-2021-22161
CVE-2021-22161
Description
In OpenWrt 19.07.x before 19.07.7, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set. This affects the netifd and odhcp6c packages.
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Affected products
2- OpenWrt/OpenWrtdescription
Patches
Vulnerability mechanics
References
1- openwrt.org/advisory/2021-02-02-1mitrex_refsource_CONFIRM
News mentions
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