MEDIUM 5.3 Microsoft
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."
Microsoft Security Update 2026-Aug: 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."
Affected Products
- azl3 systemd-bootstrap 250.3-17 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-31439
- https://nvd.nist.gov/vuln/detail/CVE-2023-31439
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.
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