ircu 2.10.12.01 allows remote attackers to (1) cause a denial of service (flood wallops) by joining two channels with certain long names that differ in the final character, which triggers a protocol violation and (2) cause a denial of service (daemon crash) via a J 0:#channel message on a channel without an apass; and (3) allows remote authenticated operators to cause a denial of service (daemon crash) via a remote names -D command.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ircu | Universal_ircd | 2.10.12.01 (including) | 2.10.12.01 (including) |
| Ircd-ircu | Ubuntu | upstream | * |