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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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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