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."

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0052 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    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.

    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.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2023-31439)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of systemd installed on the remote host is prior to 219-78. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2024-2636 advisory.

    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.
    (CVE-2023-31439)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
239154	TencentOS Server 4: systemd (TSSA-2025:0052)	Nessus	Tencent Local Security Checks	medium
232270	Linux Distros Unpatched Vulnerability : CVE-2023-31439	Nessus	Misc.	medium
207399	Amazon Linux 2 : systemd (ALAS-2024-2636)	Nessus	Amazon Linux Local Security Checks	medium

Detections

Analytics

CVE-2023-31439

medium

Tenable Plugins

medium

medium

medium