FreeBSD: VID-291d0953-47c1-11ee-8e38-002590c1f29c (CVE-2023-38408): FreeBSD -- Potential remote code execution via ssh-agent forwarding

Problem Description: The server may cause ssh-agent to load shared libraries other than those required for PKCS#11 support. These shared libraries may have side effects that occur on load and unload (dlopen and dlclose). Impact: An attacker with access to a server that accepts a forwarded ssh-agent connection may be able to execute code on the machine running ssh-agent. Note that the attack relies on properties of operating system-provided libraries. This has been demonstrated on other operating systems; it is unknown whether this attack is possible using the libraries provided by a FreeBSD installation.