This is an important security and maintenance release in order to address
CVE-2018-10933
.
libssh versions 0.6 and above have an authentication bypass vulnerability in the server code. By presenting the server an SSH2_MSG_USERAUTH_SUCCESS message in place of the SSH2_MSG_USERAUTH_REQUEST message which the server would expect to initiate authentication, the attacker could successfully authentciate without any credentials.
The bug was discovered by Peter Winter-Smith of NCC Group.
Advisories and Download
Advisories and patches for older versions can be found
here
.
