A denial of service vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent via the server could potentially result in a null pointer dereference. A malicious server or an attacker who intercepts the network traffic can send invalid data to trigger this vulnerability and cause a crash.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pidgin | Pidgin | * | 2.10.12 (including) |
| Pidgin | Ubuntu | devel | * |
| Pidgin | Ubuntu | precise | * |
| Pidgin | Ubuntu | trusty | * |
| Pidgin | Ubuntu | upstream | * |
| Pidgin | Ubuntu | wily | * |
| Pidgin | Ubuntu | xenial | * |