CVE-2025-5372
- Source
- https://cve.org/CVERecord?id=CVE-2025-5372
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5372.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-5372
- Downstream
- Related
- Published
- 2025-07-04T06:15:24.930Z
- Modified
- 2026-03-23T05:07:10.778704727Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
Affected packages
Git / gitlab.com/libssh/libssh-mirror
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5372.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "6.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
}
]