Oracle TNS Listener buffer overflow
| oracle-tns-listener-bo (6758) |  High Risk |
Description:
Transparent Network Substrate (TNS) Listener handles all remote client connection requests for Oracle services. Oracle 8i is vulnerable to a buffer overflow in the TNS Listener. By sending a one-packet command to the Net8 protocol, a remote attacker can overflow a buffer and execute arbitrary code on the system to gain administrator privileges. By default, the TNS Listener listens on TCP port 1521.
*CVSS:
| Base Score: | 10 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 7.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Apply appropriate patch for this vulnerability, as listed in the Oracle FAQ, "Frequently Asked Questions about Listener Security Patches". See References.
References:
- CERT Advisory CA-2001-16: Oracle 8i contains buffer overflow in TNS listener.
- CIAC Information Bulletin L-108: Oracle 8i TNS Listener Vulnerability.
- Network Associates, Inc. COVERT Labs Security Advisory #50, COVERT-2001-04, June 27, 2001: Vulnerability in Oracle 8i TNS Listener. (From Neohapsis archive)
- Oracle Technology Network Web site: Buffer Overflow Vulnerability in the Oracle8i Listener.
- Oracle Technology Network Web site: Frequently Asked Questions about Listener Security Patches.
- BID-2941: Oracle 8i TNS Listener Buffer Overflow Vulnerability
- CVE-2001-0499: Buffer overflow in Transparent Network Substrate (TNS) Listener in Oracle 8i 8.1.7 and earlier allows remote attackers to gain privileges via a long argument to the commands (1) STATUS, (2) PING, (3) SERVICES, (4) TRC_FILE, (5) SAVE_CONFIG, or (6) RELOAD.
- OSVDB ID: 9427: Oracle TNS Listener Multiple Command Long Argument Overflow
- US-CERT VU#620495: Oracle 8i contains buffer overflow in TNS Listener
Platforms Affected:
- Oracle Database Server 8.1.5
- Oracle Database Server 8.1.6
- Oracle Database Server 8.1.7
Reported:
Jun 27, 2001
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.