K48050136 : OpenSSH client vulnerability CVE-2020-14145

Security Advisory Description

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected. (CVE-2020-14145)

Impact

SSH sessions may be vulnerable to a man-in-the-middle attack.