CVE-2023-31439

MEDIUM
Published Jun 13, 20233y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jun 13, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

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."

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-354

Affected Products 1

VendorProductVersionRange
systemd_projectsystemd253any

References 4

  • github.com https://github.com/kastel-security/Journald
    PatchThird Party Advisory
  • github.com https://github.com/kastel-security/Journald/blob/main/journald-publication.pdf
    Technical Description
  • github.com https://github.com/systemd/systemd/pull/28885
  • github.com https://github.com/systemd/systemd/releases
    Release Notes

Remediation

  • github.com https://github.com/kastel-security/Journald
    PatchThird Party Advisory