TLS State Transition Vulnerability in GSKit in IBM Tivoli Directory Server and IBM Security Directory Server

TLS State Transition Vulnerability in GSKit in IBM Tivoli Directory Server and IBM Security Directory Server

CVE-2015-0138 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

GSKit in IBM Tivoli Directory Server (ITDS) 6.0 before 6.0.0.73-ISS-ITDS-IF0073, 6.1 before 6.1.0.66-ISS-ITDS-IF0066, 6.2 before 6.2.0.42-ISS-ITDS-IF0042, and 6.3 before 6.3.0.35-ISS-ITDS-IF0035 and IBM Security Directory Server (ISDS) 6.3.1 before 6.3.1.9-ISS-ISDS-IF0009 does not properly restrict TLS state transitions, which makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.

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