A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-22513 A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
Fixes

Solution

No solution given by the vendor.


Workaround

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

History

Thu, 14 Aug 2025 06:30:00 +0000

Type Values Removed Values Added
First Time appeared Libssh
Libssh libssh
CPEs cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
Vendors & Products Libssh
Libssh libssh

Tue, 29 Jul 2025 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 24 Jul 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Jul 2025 14:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
Title : null pointer dereference in libssh kex session id calculation
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-476
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-09-03T19:55:20.969Z

Reserved: 2025-07-24T12:27:58.843Z

Link: CVE-2025-8114

cve-icon Vulnrichment

Updated: 2025-07-24T15:32:06.298Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-24T15:15:27.117

Modified: 2025-08-14T00:45:36.510

Link: CVE-2025-8114

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-07-24T00:00:00Z

Links: CVE-2025-8114 - Bugzilla

cve-icon OpenCVE Enrichment

No data.