This page lists all security vulnerabilities fixed in ONOS. Each vulnerability is assigned a security impact rating on a four-point scale (low, moderate, important and critical). The versions that are affected by each vulnerability are also listed.
You can find the template demonstrating the structure of advisories here.
It was found that the packet deserializers in ONOS would throw exceptions when handling malformed, truncated or maliciously-crafted packets. The exceptions were not caught and handled, which would result in the relevant switch being disconnected because an exception occurred in an I/O thread. A remote unauthenticated attacker could use this flaw to perform a denial-of-service (DoS) attack by causing ONOS to disconnect switches. See ONOS-605 for more details.
ONOS 1.0.0 Avocet is confirmed to be affected.
A patched build will be released shortly.
This issue was reported by Charles M.C. Chan and Jonathan Hart.