An issue was discovered in systemd 253. An attacker can truncate a sealed log file and then resume log sealing such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent a reply denying that any of the finding was a security vulnerability.
The product does not validate or incorrectly validates the integrity check values or “checksums” of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Systemd | Systemd_project | 253 (including) | 253 (including) |
| Systemd | Ubuntu | bionic | * |
| Systemd | Ubuntu | kinetic | * |
| Systemd | Ubuntu | trusty | * |
| Systemd | Ubuntu | xenial | * |