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TITLE:
portupgrade Insecure Temporary File Creation Vulnerability

SECUNIA ADVISORY ID:
SA14903

VERIFY ADVISORY:
http://secunia.com/advisories/14903/

CRITICAL:
Less critical

IMPACT:
Manipulation of data

WHERE:
Local system

SOFTWARE:
portupgrade
http://secunia.com/product/4906/

DESCRIPTION:
Simon L. Nielsen has reported a vulnerability in portupgrade, which
can be exploited by malicious, local users to perform certain actions
on a vulnerable system with escalated privileges.

The vulnerability is caused due to insecure creation of temporary
files. This can be exploited via symlink attacks to overwrite
arbitrary files or potentially execute arbitrary commands with the
privileges of the user running portupgrade.

SOLUTION:
Update to version 20041226_2.

PROVIDED AND/OR DISCOVERED BY:
Simon L. Nielsen

ORIGINAL ADVISORY:
http://www.vuxml.org/freebsd/22f00553-a09d-11d9-a788-0001020eed82.html

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