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November 29, 2005
Symantec pcAnywhere Denial of Service

Revision History
1/17/06 - Added CVE ID

Risk Impact

Remote AccessYes
Local AccessNo
Authentication RequiredNo
Exploit publicly availableNo


A buffer overflow has been resolved in Symantec pcAnywhere that could lead to a Denial of Service. The buffer overflow occurs prior to authentication and can lead to termination of the pcAnywhere component. pcAnywhere must be restarted to function as designed.

Affected Product(s)

Symantec pcAnyware11.0.1

Note: This vulnerability affects all 32-bit versions of pcAnywhere. Updates are available for supported versions only. Users of versions prior to 11.0.1, are encouraged to upgrade to a supported version.

Symantec Response
Patches for this issue can be downloaded from the following locations:

For consumer versions of Symantec pcAnywhere:

For enterprise versions of Symantec pcAnywhere:

Select your supported version of Symantec pcAnywhere and follow the instructions to download the appropriate update.

Symantec is not aware of any active attempts against or customers impacted by this issue.

As a part of normal best practices, users should keep vendor-supplied patches for all application software and operating systems up-to-date. Symantec strongly recommends any affected customers update their product immediately to protect against these types of threats.

The Common Vulnerabilities and Exposures (CVE) initiative has assigned CVE-2005-3934 to this issue.

Symantec would like to thank Tal at See-Security technologies Ltd. for reporting this issue and for providing coordination while Symantec resolved it.

Symantec takes the security and proper functionality of our products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec supports and follows the principles of responsible disclosure. Symantec also subscribes to the vulnerability disclosure guidelines outlined by the National Infrastructure Advisory Council (NIAC).

Please contact secure@symantec.com if you feel you have discovered a security issue in a Symantec product. A Symantec Product Security team member will contact you regarding your submission. Symantec strongly recommends using encrypted email for reporting vulnerability information to secure@symantec.com. The Symantec Product Security PGP key can be found at the end of this message.

Symantec has developed a Product Vulnerability Response document outlining the process we follow in addressing suspected vulnerabilities in our products. This document is available below.

PDF Symantec Vulnerability Response Policy PGP Symantec Product Vulnerability Management PGP Key

Copyright © by Symantec Corp.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.

Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

Initial Post on: Tuesday, 29-Nov-05 16:00:00
Last modified on: Tuesday, 17-Jan-2006 14:02:51 PST
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