Secunia Research: Free Download Manager Four Buffer Overflow Vulnerabilities

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                 Secunia Research 13/05/2010

• Free Download Manager Four Buffer Overflow Vulnerabilities -

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Table of Contents

Affected Software…1
Severity…2
Vendor's Description of Software…3
Description of Vulnerability…4
Solution…5
Time Table…6
Credits…7
References…8
About Secunia…9
Verification…10

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1) Affected Software

• Free Download Manager version 3.0 build 850.

NOTE: Other versions may also be affected.

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2) Severity

Rating: Highly critical
Impact: System access
Where: Remote

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3) Vendor's Description of Software

"What is Free Download Manager? It is a powerful, easy-to-use and
absolutely free download accelerator and manager. Moreover, FDM is
100% safe, open-source software distributed under GPL license.".

Product Link:
http://www.freedownloadmanager.org/

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4) Description of Vulnerability

Secunia Research has discovered four vulnerabilities in Free Download
Manager, which can be exploited by malicious people to compromise a
user's system.

1) A boundary error when opening folders within the "Site Explorer"
functionality can be exploited to cause a stack-based buffer overflow.

2) A boundary error when e.g. opening websites in the "Site Explorer"
functionality can be exploited to cause a stack-based buffer overflow.

3) A boundary error when processing FTP URIs can be exploited to
cause a stack-based buffer overflow.

4) A boundary error when handling redirects can be exploited to cause
a stack-based buffer overflow.

Successful exploitation of the vulnerabilities allows execution of
arbitrary code.

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5) Solution

Update to version 3.0 build 852.

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6) Time Table

21/04/2010 - Vendor notified.
26/04/2010 - Vendor response.
13/05/2010 - Public disclosure.

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7) Credits

Discovered by Stefan Cornelius, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-0998 for the vulnerabilities.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-68/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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