Vulnerability Details : CVE-2023-6918

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.
Published 2023-12-19 00:15:08
Updated 2024-09-16 18:15:54
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-6918

Exploit prediction scoring system (EPSS) score for CVE-2023-6918

EPSS FAQ
0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-6918

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.1
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
3.9
5.2
 NIST 2024-01-02
5.3
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.9
1.4
 NIST 2024-01-04
3.7
 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
2.2
1.4
 Red Hat, Inc.

CWE ids for CVE-2023-6918

  • The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2023-6918

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