Inadequate Encryption Strength in OpenSSH - CVE-2023-51384
Published: December 27, 2023
Vulnerability identifier: #VU84792
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-51384
CWE-ID: CWE-326
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSH
Affected software:
OpenSSH
OpenSSH
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to an error in the ssh-agent, which causes certain destination constraints to be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.
How to mitigate CVE-2023-51384
Install updates from vendor's website.