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FreeBSD -- Local kernel memory disclosure


Problem description:

A buffer allocated from the kernel stack may not be completely initialized before being copied to userland. [CVE-2006-0379]

A logic error in computing a buffer length may allow too much data to be copied into userland. [CVE-2006-0380]


Portions of kernel memory may be disclosed to local users. Such memory might contain sensitive information, such as portions of the file cache or terminal buffers. This information might be directly useful, or it might be leveraged to obtain elevated privileges in some way. For example, a terminal buffer might include a user-entered password.


No workaround is available.



portaudit: FreeBSD -- Local kernel memory disclosure

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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 <>