s3dvt is part of the 3d network display server which can be used as
3d desktop environment.

Vulnerability:

The s3dvt developers forgot to review all the code. There is still a
vulnerable function as in the previous CVE-2013-6825. At the date of
Jun 1, 2014 the last commit of the s3dvt is still vulnerable and
exploitable. Commit: 1e9c9c53fa192cbf4f79d724b5e6c76374516968