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krb5 -- double-free vulnerabilities


An advisory published by the MIT Kerberos team says:

The MIT Kerberos 5 implementation's Key Distribution Center (KDC) program contains a double-free vulnerability that potentially allows a remote attacker to execute arbitrary code. Compromise of a KDC host compromises the security of the entire authentication realm served by the KDC. Additionally, double-free vulnerabilities exist in MIT Kerberos 5 library code, making client programs and application servers vulnerable.

Double-free vulnerabilities of this type are not believed to be exploitable for code execution on FreeBSD systems. However, the potential for other ill effects may exist.



portaudit: krb5 -- double-free vulnerabilities

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If you have found a vulnerability in a FreeBSD port not listed in the database, please contact the FreeBSD Security Officer. Refer to "FreeBSD Security Information" for more information.

Oliver Eikemeier <>