The installation functionality in the Novell Kanaka component before 2.8 for Novell Open Enterprise Server (OES) on Mac OS X does not verify the server's X.509 certificate during an SSL session, which allows man-in-the-middle attackers to spoof servers via an arbitrary certificate.

The SSL server implementation in NILE.NLM in Novell NetWare 6.5 and Novell Open Enterprise Server (OES) permits encryption with a NULL key, which results in cleartext communication that allows remote attackers to read an SSL protected session by sniffing network traffic.

The SSL server implementation in NILE.NLM in Novell NetWare 6.5 and Novell Open Enterprise Server (OES) sometimes selects a weak cipher instead of an available stronger cipher, which makes it easier for remote attackers to sniff and decrypt an SSL protected session.

The SSL server implementation in NILE.NLM in Novell NetWare 6.5 and Novell Open Enterprise Server (OES) allows a client to force the server to use weak encryption by stating that a weak cipher is required for client compatibility, which might allow remote attackers to decrypt contents of an SSL protected session.