VULNERABILITY INTELLIGENCE

CVE-2023-6918

CVSS score3.7 LOW
EPSS probability1.41%
CISA KEVNot currently listed
Published2023-12-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Weakness classification

  • CWE-252: Unchecked Return Value

Primary references