MEDIUM 5.3 Microsoft
CVE-2023-31438
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."
Microsoft Security Update 2026-Aug: 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."
Affected Products
- azl3 systemd-bootstrap 250.3-17 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-31438
- https://nvd.nist.gov/vuln/detail/CVE-2023-31438
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-08-06 via Microsoft. Affected: azl3 systemd-bootstrap 250.3-17 on Azure Linux 3.0.
vulnfeed aggregates 8893 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.