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securityvulnsSecurityvulnsSECURITYVULNS:DOC:11375
HistoryFeb 11, 2006 - 12:00 a.m.

Secunia Research: Lotus Notes TAR Reader File Extraction Buffer Overflow

2006-02-1100:00:00
vulners.com
10

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                 Secunia Research 10/02/2006

 - Lotus Notes TAR Reader File Extraction Buffer Overflow -

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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

Lotus Notes 6.5.4 and 7.0.

NOTE: Other versions may also be affected.

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2) Severity

Rating: Less critical
Impact: System access
Where: From remote

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3) Vendor's Description of Software

"IBM Lotus Notes continues to set the standard for innovation in the
messaging and collaboration market Lotus defined over a decade ago.
As an integrated collaborative environment, the Lotus Notes client
and the IBM Lotus Domino server combine enterprise-class messaging
and calendaring & scheduling capabilities with a robust platform for
collaborative applications".

Product Link:
http://www.lotus.com/products/product4.nsf/wdocs/noteshomepage

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4) Description of Vulnerability

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

The vulnerability is caused due to a boundary error in the TAR reader
(tarrdr.dll) when extracting files from a TAR archive. This can be
exploited to cause a stack-based buffer overflow via a TAR archive
containing a file with a long filename.

Successful exploitation allows execution of arbitrary code, but
requires that the user views a malicious TAR archive and chooses to
extracts a compressed file to a directory with a very long path
(more than 220 bytes).

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5) Solution

Update to version 6.5.5 or 7.0.1.

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6) Time Table

17/08/2005 - Vendor notified.
18/08/2005 - Vendor response.
10/02/2006 - Public disclosure.

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7) Credits

Discovered by Carsten Eiram, Secunia Research.

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8) References

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

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9) 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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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-34/

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

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