FKIE_CVE-2025-5372

Vulnerability from fkie_nvd - Published: 2025-07-04 06:15 - Updated: 2025-12-10 19:16
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:21977
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:23024
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-5372Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2369388Issue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
libssh libssh *
redhat openshift_container_platform 4.0
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
redhat enterprise_linux 10.0
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  "lastModified": "2025-12-10T19:16:14.643",
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