Multiple buffer overflows in Oracle 9i Database release 2, Release 1, 8i, 8.1.7, and 8.0.6 allow remote attackers to execute arbitrary code via (1) a long conversion string argument to the TO_TIMESTAMP_TZ function, (2) a long time zone argument to the TZ_OFFSET function, or (3) a long DIRECTORY parameter to the BFILENAME function.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.