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Insecure Library Loading
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PWLib "PString::vsprintf()" Denial of Service Vulnerability

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Release Date:  2007-10-09    Views:  7,305

Secunia Advisory SA27127

Where:

From remote

Impact:

DoS

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


A vulnerability has been discovered in PWLib, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the "PString::vsprintf()" method in src/ptlib/common/contain.cxx. This can be exploited to cause a memory corruption by e.g. tricking an application using the library to use this function with a string longer than 1000 bytes.

The vulnerability is confirmed in version 1.10.4-1 for Fedora Core 6. Other versions may also be affected.


Solution:
Use applications linked against PWLib in trusted environments and trusted data only.

Provided and/or discovered by:
Reported in a Red Hat advisory.

Original Advisory:
http://rhn.redhat.com/errata/RHSA-2007-0932.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: PWLib "PString::vsprintf()" Denial of Service Vulnerability

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