• News
• Infocus
• Foundations
• Microsoft
• Unix
• IDS
• Incidents
• Virus
• Pen-Test
• Firewalls
• Columnists
• Mailing Lists
• Newsletters
• Bugtraq
• Focus on IDS
• Focus on Linux
• Focus on Microsoft
• Forensics
• Pen-test
• Security Basics
• Vuln Dev
• Vulnerabilities
• Jobs
• Job Opportunities
• Resumes
• Job Seekers
• Employers
• Tools
• RSS
• News
• Vulns
• Security Research

• info
• discussion
• exploit
• solution
• references

Oracle 9i TNS Denial of Service Vulnerability

Oracle is a commercial relational database product. Oracle is available for the Unix, Linux, and Microsoft Windows platforms.

Reportedly, sending a one byte packet to the TNS Listener on port 1521 could cause the host to consume all available CPU, potentially leading to a denial of service.

This issue may stem from an originally discovered issue in Oracle Net8 (formerly Oracle SQL*Net). However this has not yet been confirmed.