CVE-2023-51384
MEDIUM severity · CVSS 5.5 · Improper access control
5.5CVSS MEDIUM
Summary
In ssh-agent in OpenSSH before 9.6, certain destination constraints can 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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/openssh/openssh-portable/commit/881d9c6af9da4257c69c327c4e2f1508b2fa754b ↗
Additional information
- NVD record
- https://github.com/openssh/openssh-portable/commit/881d9c6af9da4257c69c327c4e2f1508b2fa754bPatch
- http://seclists.org/fulldisclosure/2024/Mar/21Advisory
- https://security.netapp.com/advisory/ntap-20240105-0005/Advisory
- https://support.apple.com/kb/HT214084Advisory
- https://www.debian.org/security/2023/dsa-5586Advisory
- https://www.openssh.com/txt/release-9.6
- https://www.openwall.com/lists/oss-security/2023/12/18/2