Secunia Research: Lotus Notes ZIP File Handling Buffer Overflow Feb 10 2006 01:37PM
Secunia Research (vuln secunia com)
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Secunia Research 10/02/2006

- Lotus Notes ZIP File Handling Buffer Overflow -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

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1) Affected Software

* Lotus Notes 6.5.4

Other versions may also be affected.

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2) Severity

Rating: Moderately Critical
Impact: System access
Where: Remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in Lotus Notes, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in kvarcve.dll
when constructing the full pathname of a compressed file to check for
its existence before extracting it from a ZIP archive. This can be
exploited to cause a stack-based buffer overflow.

Successful exploitation allows execution of arbitrary code when the
user extracts a compressed file with a long filename from within the
Notes attachment viewer.

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4) Solution

Update to version 6.5.5.

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5) Time Table

03/08/2005 - Initial vendor notification.
03/08/2005 - Initial vendor response.
10/02/2006 - Public disclosure.

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6) Credits

Discovered by Tan Chew Keong, Secunia Research.

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7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
candidate number CAN-2005-2618 for the vulnerability.

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8) About Secunia

Secunia collects, validates, assesses, and writes advisories regarding
all the latest software vulnerabilities disclosed to the public. These
advisories are gathered in a publicly available database at the
Secunia website:

http://secunia.com/

Secunia offers services to our customers enabling them to receive all
relevant vulnerability information to their specific system
configuration.

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

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9) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-37/advisory/

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

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