GHSA-9gp7-6833-wv89 etcd having a negative value for cluster node size results in an index out-of-bound panic during service discovery

• Go go.etcd.io/etcd/client/v3: >= 3.4.0, < 3.4.10 → fixed in 3.4.10 • Go go.etcd.io/etcd/client/v3: < 3.3.23 → fixed in 3.3.23

Vulnerability type Data Validation Detail When an etcd instance attempts to perform service discovery, if a cluster size is provided as a negative value, the etcd instance will panic without recovery. References Find out more on this vulnerability in the security audit report For more information If you have any questions or comments about this advisory: • Contact the etcd security committee