The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.
| Software | From | Fixed in |
|---|---|---|
| bestpractical / request_tracker | 4.1.13 | 4.4.0.x |
| fedoraproject / fedora | 28 | 28.x |
| fedoraproject / fedora | 29 | 29.x |
| canonical / ubuntu_linux | 18.04 | 18.04.x |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 10.0 | 10.0.x |