ISS Protection Advisory: Symantec Antivirus Library Heap Overflow

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Internet Security Systems Protection Brief
February 8, 2005

Symantec AntiVirus Library Heap Overflow

Summary:

ISS has shipped protection for a flaw X-Force has discovered in Symantec
AntiVirus Library. The Symantec AntiVirus Library is widely relied upon
to provide antivirus capabilities to desktop, server, and gateway systems.
Also, several large vendors and ISP's implement Symantec's AntiVirus
Library in their products. By crafting a UPX file, an attacker is able
to trigger a heap overflow within the process importing the Symantec
AntiVirus Library.

Business Impact:

Compromise of antivirus protected networks and machines may lead to
exposure of confidential information, loss of productivity, and further
network compromise. Successful exploitation of this vulnerability could
be used to gain unauthorized access to networks and machines being
protected by Symantec AntiVirus Library product. Implementations of
Symantec AntiVirus Library are likely vulnerable through common protocols,
e.g. SMTP, HTTP, FTP. No authentication is required for an attacker to
leverage this vulnerability to compromise an antivirus protected network
or machine. It is likely Symantec AntiVirus Library implementations are
vulnerable in their default configurations.

For the complete X-Force Protection Advisory, please visit:
http://xforce.iss.net/xforce/alerts/id/187

Internet Security Systems, Inc. (ISS) is the trusted expert to global
enterprises and world governments, providing products and services
that protect against Internet threats. An established world leader
in security since 1994, ISS delivers proven cost efficiencies and
reduces regulatory and business risk across the enterprise for
more than 11,000 customers worldwide. ISS products and services
are based on the proactive security intelligence conducted by ISS.
X-Force® research and development team . the unequivocal world
authority in vulnerability and threat research. Headquartered
in Atlanta, Internet Security Systems has additional operations
throughout the Americas, Asia, Australia, Europe and the Middle East.

Copyright (c) 2005 Internet Security Systems, Inc. All rights reserved
worldwide.

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X-Force PGP Key available on MIT's PGP key server and PGP.com's key
server, as well as at http://www.iss.net/security_center/sensitive.php
Please send suggestions, updates, and comments to:
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