CVE-2023-31439: An issue was discovered in systemd 253. An attacker can modify the contents of past events in a sealed log file and then adjust the file 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."
Overview
- Severity
- Medium (CVSS 5.3)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Aug
- Released
- 2026-08-07
- EPSS Score
- 0.35% (percentile: 27.6%)
Affected Products (1)
Mariner
- azl3 systemd-bootstrap 250.3-17 on Azure Linux 3.0
Revision History
- 2026-08-07: Information published.