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.
Platforms Affected:
- Oracle, Database Server 8.1.5
- Oracle, Database Server 8.1.6
- Oracle, Database Server 8.1.7
Remedy:
Apply appropriate patch for this vulnerability, as listed in the Oracle FAQ, "Frequently Asked Questions about Listener Security Patches". See References.
Consequences:
Gain Privileges
References:
- CERT Advisory CA-2001-16, Oracle 8i contains buffer overflow in TNS listener at http://www.cert.org/advisories/CA-2001-16.html.
- CIAC Information Bulletin L-108, Oracle 8i TNS Listener Vulnerability at http://www.ciac.org/ciac/bulletins/l-108.shtml.
- Network Associates, Inc. COVERT Labs Security Advisory #50, COVERT-2001-04, June 27, 2001, Vulnerability in Oracle 8i TNS Listener at http://archives.neohapsis.com/archives/ntbugtraq/2001-q2/0059.html. (From Neohapsis archive)
- Oracle Technology Network Web site, Buffer Overflow Vulnerability in the Oracle8i Listener at http://otn.oracle.com/deploy/security/pdf/nai_net8_bof.pdf.
- Oracle Technology Network Web site, Frequently Asked Questions about Listener Security Patches at http://technet.oracle.com/deploy/security/pdf/patch_avail.html.
- 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.
- US-CERT VU#620495: Oracle 8i contains buffer overflow in TNS Listener
Reported:
Jun 27, 2001
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