Vulnerability Monitor

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CVE-2025-5372

A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success—the function may mistakenly return a success status even when key derivation fails. This results in uninitialized cryptographic key buffers being used in subsequent communication, potentially compromising SSH sessions' confidentiality, integrity, and availability.

Published

2025-07-04T06:15:24.930

Last Modified

2025-12-10T19:16:14.643

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.0 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-682
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application libssh libssh < 0.11.2 Yes
Application redhat openshift_container_platform 4.0 Yes
Operating System redhat enterprise_linux 6.0 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux 9.0 Yes
Operating System redhat enterprise_linux 10.0 Yes
References