TITLE:
vim Insecure Temporary File Creation

SECUNIA ADVISORY ID:
SA13841

VERIFY ADVISORY:
http://secunia.com/advisories/13841/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Vim 6.x
http://secunia.com/product/2919/

DESCRIPTION:
Javier Fernández-Sanguino Peña has reported some vulnerabilities in
vim, which can be exploited by malicious, local users to perform
certain actions on a vulnerable system with escalated privileges.

The vulnerabilities are caused due to the tcltags and vimspell.sh
scripts creating temporary files insecurely. This can be exploited
via symlink attacks to overwrite arbitrary files with the privileges
of the user running a vulnerable scripts.

The vulnerabilities have been reported in version 6.3. Other versions
may also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Javier Fernández-Sanguino Peña

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