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TITLE:
OpenLink Virtuoso Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA31140

VERIFY ADVISORY:
http://secunia.com/advisories/31140/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
OpenLink Virtuoso (Open-Source Edition) 5.x
http://secunia.com/product/19338/

DESCRIPTION:
Some vulnerabilities have been reported in OpenLink Virtuoso, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

1) Input validation errors in certain built-in SQL functions can be
exploited to cause a crash via e.g. specially crafted queries over
the SPARQL protocol.

2) Unauthorised access to tables with application specified policy
functions can be exploited to cause a crash.

3) An error when handling nested subqueries can be exploited to cause
a stack overflow.

Other issues which may be security related have also been reported.

SOLUTION:
Update to version 5.0.7.
http://sourceforge.net/project/showfiles.php?group_id=161622

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://sourceforge.net/project/shownotes.php?release_id=614029

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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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Please Note:
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Secunia NEVER sends attached files with advisories.
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