Red Hat Security Advisory 2017-0564-01 – The libguestfs packages contain a library, which is used for accessing and modifying virtual machine disk images. Security Fix: An integer conversion flaw was found in the way OCaml’s String handled its length. Certain operations on an excessively long String could trigger a buffer overflow or result in an information leak. Note: The libguestfs packages in this advisory were rebuilt with a fixed version of OCaml to address this issue.