Integrated Management Module (IMM) 2 1.00 through 2.00 on IBM System X and Flex System servers supports SSL cipher suites with short keys, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a brute-force attack against (1) SSL or (2) TLS traffic.

A stack overflow vulnerability was discovered within the web administration service in Integrated Management Module 2 (IMM2) earlier than version 4.70 used in some Lenovo servers and earlier than version 6.60 used in some IBM servers. An attacker providing a crafted user ID and password combination can cause a portion of the authentication routine to overflow its stack, resulting in stack corruption.