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lbreakout2 vulnerability in environment variable handling


Ulf Härnhammar discovered an exploitable vulnerability in lbreakout2's environmental variable handling. In several instances, the contents of the HOME environmental variable are copied to a stack or global buffer without range checking. A local attacker may use this vulnerability to acquire group-ID `games' privileges.

An exploit for this vulnerability has been published by ``Li0n7 voila fr''.



portaudit: lbreakout2 vulnerability in environment variable handling

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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 <>