This indicates an attempt to exploit a buffer overflow vulnerability in OpenSSL. Certain versions of OpenSSL contain two vulnerabilities that could lead to buffer overflows. A remote attacker could provide a large client master key or a large session ID in SSL3, causing a buffer overflow. As a result, the attacker may be able to execute arbitrary code on the system.
OpenSSL 0.9.7 beta2 and earlier
Compromise of affected System or Denial of Service
Upgrade OpenSSL to version 0.9.6e or 0.9.7 beta3 or newer.