The onReadyRead function in core/coreauthhandler.cpp in Quassel before 0.12.4 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via invalid handshake data.
| Software | From | Fixed in |
|---|---|---|
| opensuse / leap | 42.1 | 42.1.x |
| opensuse / opensuse | 13.2 | 13.2.x |
| quassel-irc / quassel | - | 0.12.3.x |
| fedoraproject / fedora | 22 | 22.x |
| fedoraproject / fedora | 24 | 24.x |
| fedoraproject / fedora | 23 | 23.x |