Oracle Database Buffer overflow vulnerability in procedure DBMS_LOGREP_UTIL.GET_OBJECT_NAME (DB08)
Jan 18, 2007 (Updated Jan 29, 2007)
Risk Level: Medium
Oracle Database Server versions 9iR2 and 10gR1
Remote exploitable: Yes (Authentication to Database Server is needed)
This vulnerability was discovered and researched by Esteban Martínez Fayó of Application Security Inc.
Oracle Database Server provides the DBMS_LOGREP_UTIL package that is used internally by Oracle. This package contains the procedure GET_OBJECT_NAME which is vulnerable to buffer overflow attacks.
Any Oracle database user with EXECUTE privilege on the package SYS.DBMS_LOGREP_UTIL can exploit this vulnerability. Exploitation of this vulnerability allows an attacker to execute arbitrary code. It can also be exploited to cause DOS (Denial of service) killing Oracle server process.
Vendor was contacted and a patch was released.
Restrict access to the SYS.DBMS_LOGREP_UTIL package.
Apply Oracle Critical Patch Update January 2007 available at Oracle Metalink.