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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
http://corporate.secunia.com/products/48/?r=l

Contact Secunia Sales for more information:
http://corporate.secunia.com/how_to_buy/15/?r=l

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TITLE:
Mutt Insecure Temporary File Creation Weaknesses

SECUNIA ADVISORY ID:
SA22613

VERIFY ADVISORY:
http://secunia.com/advisories/22613/

CRITICAL:
Not critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Mutt 1.4.x
http://secunia.com/product/1305/

DESCRIPTION:
Some weaknesses have been reported in mutt, which potentially can be
exploited by malicious, local users to perform certain actions with
escalated privileges.

1) The "safe_open()" function insecurely creates temporary files on
NFS directories, because the O_EXEC flag is not always correctly
honored. This may be exploited to overwrite arbitrary files.

2) A race condition exists within the "mutt_adv_mktemp()" function
between calling "mktemp()" and "safe_fopen()". This may be exploited
to create files with weak permissions.

SOLUTION:
Use on trusted systems only.

PROVIDED AND/OR DISCOVERED BY:
Derek D. Martin

ORIGINAL ADVISORY:
http://marc.theaimsgroup.com/?l=mutt-dev&m=115999486426292&w=2

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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Secunia NEVER sends attached files with advisories.
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