CVE-2021-22161

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.
References
Link Resource
https://openwrt.org/advisory/2021-02-02-1 Vendor Advisory
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Configurations

Configuration 1 (hide)

cpe:2.3:a:openwrt:openwrt:*:*:*:*:*:*:*:*

Information

Published : 2021-02-07 15:15

Updated : 2021-02-11 07:29


NVD link : CVE-2021-22161

Mitre link : CVE-2021-22161


JSON object : View

CWE
CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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Products Affected

openwrt

  • openwrt