TITLE:
ktools VGETSTRING Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA17768

VERIFY ADVISORY:
http://secunia.com/advisories/17768/

CRITICAL:
Moderately critical

IMPACT:
Unknown

WHERE:
>From remote

SOFTWARE:
ktools 0.x
http://secunia.com/product/6231/

DESCRIPTION:
Mehdi Oudad and Kevin Fernandez have reported a vulnerability in
ktools, which has an unknown impact.

The vulnerability is caused due to a boundary error in the
"VGETSTRING()" macro when generating the output string using the
"vsprintf()" function. This can be exploited to cause a stack-based
buffer overflow via an overly long input string.

The vulnerability has been reported in version 0.3. Other versions
may also be affected.

Note: All applications that use the Ktools library to create
text-mode user interfaces are potentially affected. The actual impact
depends on whether the application uses any external data sources to
populate the treeview or the verticalmenu control.

SOLUTION:
Restrict use of affected applications to only accept input from
trusted sources.

PROVIDED AND/OR DISCOVERED BY:
Mehdi Oudad "deepfear" and Kevin Fernandez "Siegfried", Zone-H
Research Team.

ORIGINAL ADVISORY:
http://www.zone-h.org/en/advisories/read/id=8480/

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