Description
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."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | systemd | No fix yet | — |
| Debian 13 | systemd | No fix yet | — |
| Debian 12 | systemd | No fix yet | — |
Advisories 1
- WID-SEC-2023-1453 systemd: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 13, 2023