Libssh: libssh: information disclosure via proxycommand %r username expansion

Openssh: heap out-of-bounds read in red hat enterprise linux versions of openssh gssapi indicator cleanup due to missing null sentinel termination

Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response

Libxml2: unbounded relaxng include recursion leading to stack overflow

Libxml2: libxml2: denial of service via crafted xml catalogs