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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:
FreeBSD "ffs_mountfs()" Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA22736

VERIFY ADVISORY:
http://secunia.com/advisories/22736/

CRITICAL:
Less critical

IMPACT:
Privilege escalation, DoS

WHERE:
Local system

OPERATING SYSTEM:
FreeBSD 6.x
http://secunia.com/product/6778/

DESCRIPTION:
LMH has reported a vulnerability in FreeBSD, which can be exploited
by malicious, local users to cause a DoS (Denial of Service) or gain
escalated privileges.

The vulnerability is caused due to an integer overflow within the
"ffs_mountfs()" function. This can be exploited to crash the kernel
or possibly execute arbitrary code by mounting a specially crafted
UFS image.

The vulnerability is reported in FreeBSD 6.1. Other versions may also
be affected.

SOLUTION:
Allow only trusted users to mount UFS images.

PROVIDED AND/OR DISCOVERED BY:
LMH

ORIGINAL ADVISORY:
http://projects.info-pull.com/mokb/MOKB-03-11-2006.html

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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:
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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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