Snort alert description

[Joseph Watever J]

i have install snort ids/ips and i have activate ALL packages

in alert section, i see :

Attempted User Privilege Gain :(smtp) Attempted response buffer overflow: 529 chars
Attempted Information Leak : (portscan) UDP Filtered Portscan
Potentially Bad Traffic : ET SCAN Suspicious inbound to MSSQL port 1433

any one can explain this ?

[Joseph Watever J]

Misc activity : ET POLICY Signed TLS Certificate with md5WithRSAEncryption

[Joseph Watever J]

Generic Protocol Command Decode : ET INFO Session Traversal Utilities for NAT (STUN Binding Response)