Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ircd-hybrid | Ircd-hybrid | 7.2.2 (including) | 7.2.2 (including) |
| Ircd-hybrid | Ircd-hybrid | 7.2.3 (including) | 7.2.3 (including) |
| Ircd-hybrid | Ubuntu | artful | * |
| Ircd-hybrid | Ubuntu | bionic | * |
| Ircd-hybrid | Ubuntu | cosmic | * |
| Ircd-hybrid | Ubuntu | dapper | * |
| Ircd-hybrid | Ubuntu | devel | * |
| Ircd-hybrid | Ubuntu | hardy | * |
| Ircd-hybrid | Ubuntu | intrepid | * |
| Ircd-hybrid | Ubuntu | jaunty | * |
| Ircd-hybrid | Ubuntu | karmic | * |
| Ircd-hybrid | Ubuntu | lucid | * |
| Ircd-hybrid | Ubuntu | maverick | * |
| Ircd-hybrid | Ubuntu | natty | * |
| Ircd-hybrid | Ubuntu | oneiric | * |
| Ircd-hybrid | Ubuntu | precise | * |
| Ircd-hybrid | Ubuntu | quantal | * |
| Ircd-hybrid | Ubuntu | raring | * |
| Ircd-hybrid | Ubuntu | saucy | * |
| Ircd-hybrid | Ubuntu | trusty | * |
| Ircd-hybrid | Ubuntu | utopic | * |
| Ircd-hybrid | Ubuntu | vivid | * |
| Ircd-hybrid | Ubuntu | wily | * |
| Ircd-hybrid | Ubuntu | xenial | * |
| Ircd-hybrid | Ubuntu | yakkety | * |
| Ircd-hybrid | Ubuntu | zesty | * |
| Ircd-ratbox | Ubuntu | hardy | * |
| Ircd-ratbox | Ubuntu | intrepid | * |
| Ircd-ratbox | Ubuntu | jaunty | * |
| Ircd-ratbox | Ubuntu | karmic | * |
| Ircd-ratbox | Ubuntu | lucid | * |
| Ircd-ratbox | Ubuntu | maverick | * |
| Ircd-ratbox | Ubuntu | natty | * |
| Ircd-ratbox | Ubuntu | oneiric | * |
| Ircd-ratbox | Ubuntu | precise | * |
| Ircd-ratbox | Ubuntu | quantal | * |
| Ircd-ratbox | Ubuntu | raring | * |
| Ircd-ratbox | Ubuntu | saucy | * |
| Ircd-ratbox | Ubuntu | upstream | * |
| Ircd-ratbox | Ubuntu | utopic | * |
| Ircd-ratbox | Ubuntu | vivid | * |
| Ircd-ratbox | Ubuntu | wily | * |
| Oftc-hybrid | Ubuntu | hardy | * |
| Oftc-hybrid | Ubuntu | intrepid | * |
| Oftc-hybrid | Ubuntu | jaunty | * |
| Oftc-hybrid | Ubuntu | karmic | * |
| Oftc-hybrid | Ubuntu | lucid | * |
| Oftc-hybrid | Ubuntu | maverick | * |
| Oftc-hybrid | Ubuntu | natty | * |
| Oftc-hybrid | Ubuntu | oneiric | * |
| Oftc-hybrid | Ubuntu | precise | * |
| Oftc-hybrid | Ubuntu | quantal | * |
| Oftc-hybrid | Ubuntu | raring | * |