CVE-2023-6918

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

19/12/2023

Last modified:

15/02/2025

Description

A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 3.70 LOW
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

3.70

Severity 3.x

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:libssh:libssh::::::::	0.9.0 (including)	0.9.8 (excluding)
cpe:2.3:a:libssh:libssh::::::::	0.10.0 (including)	0.10.6 (excluding)
cpe:2.3:o:fedoraproject:fedora:38:::::::*
cpe:2.3:o:fedoraproject:fedora:39:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-6918

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools