-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
ESB-2009.0265 -- [Win][RedHat][OSX]
Symantec pcAnywhere Format String Denial of Service
23 March 2009
AusCERT Security Bulletin Summary
Product: Symantec pcAnywhere
Operating System: Windows
Mac OS X
Red Hat Linux
Impact: Denial of Service
Access: Existing Account
CVE Names: CVE-2009-0538
- --------------------------BEGIN INCLUDED TEXT--------------------
March 17, 2009
Symantec pcAnywhere Format String Denial of Service
Remote Access No
Local Access Yes
Authentication Required No
Exploit publicly available No
Symantec pcAnywhere is susceptible to a format string vulnerability. An
authorized local user may potentially leverage this to crash the
pcAnywhere application, leading to a denial of service.
Product Version Build Solution
Symantec pcAnywhere 12.0, 12.1, 12.5 All Upgrade to 12.5 SP1
Note: Only the versions listed above are supported. Customers running
non-supported versions should upgrade to the above mentioned non-vulnerable
Layered Defense informed Symantec of a format string vulnerability in
Symantec pcAnywhere. This issue can be exploited by a malicious user to
crash the application causing a denial of service. Successful exploitation
requires local machine access.
Symantec engineers verified this issue exists on those supported products
identified above. Product updates are available for supported affected
Symantec is not aware of any customers impacted by this issue, or of any
attempts to exploit it.
Information on downloading and applying the upgrade is available from the
For Enterprise, Small & Mid-Sized Business (SMB) - Download the update
from your normal support location
or, use the LiveUpdate option, if authorized, to install this update
Home and Home Office -
pcAnywhere users who regularly run LiveUpdate should automatically receive
an updated (non-vulnerable) version. To ensure all available updates have
been applied, users can run a manual LiveUpdate as follows:
* Open the Symantec pcAnywhere application
* Click LiveUpdate
* Run LiveUpdate until all available product updates are downloaded and
* A system reboot may be required before the update takes affect
As part of normal best practices, Symantec strongly recommends:
* Restrict access to administration or management systems to privileged
* Restrict remote access, if required, to trusted/authorized systems
* Run under the principle of least privilege where possible to limit the
impact of exploit by threats.
* Keep all operating systems and applications updated with the latest
* Follow a multi-layered approach to security. Run both firewall and
anti-malware applications, at a minimum, to provide multiple points of
detection and protection to both inbound and outbound threats.
* Deploy network and host-based intrusion detection systems to monitor
network traffic for signs of anomalous or suspicious activity. This
may aid in detection of attacks or malicious activity related to
exploitation of latent vulnerabilities
SecurityFocus, http://www.securityfocus.com, has assigned BID 33845 to this
The Common Vulnerabilities and Exposures (CVE), http://cve.mitre.org/,
initiative has assigned CVE Candidate number CVE-2009-0538 to this issue.
Symantec would like to thank Deral Heiland with Layered Defense for
reporting this issue and coordinating with us while Symantec resolved it.
Symantec takes the security and proper functionality of its products very
seriously. As founding members of the Organization for Internet Safety
(OISafety), Symantec follows the principles of responsible disclosure.
Symantec also subscribes to the vulnerability guidelines outlined by the
National Infrastructure Advisory Council (NIAC). Please contact
firstname.lastname@example.org if you feel you have discovered a potential or actual
security issue with a Symantec product. A Symantec Product Security team
member will contact you regarding your submission.
Symantec has developed a Product Vulnerability Handling Process document
outlining the process we follow in addressing suspected vulnerabilities in
our products. We support responsible disclosure of all vulnerability
information in a timely manner to protect Symantec customers and the
security of the Internet as a result of vulnerability. This document is
available from the location provided below.
Symantec strongly recommends using encrypted email for reporting
vulnerability information to email@example.com. The Symantec Product
Security PGP key can be obtained from the location provided below.
Symantec-Product-Vulnerability-Response Symantec Vulnerability Response
Policy Symantec Product Vulnerability Management PGP Key Symantec Product
Vulnerability Management PGP Key
Copyright (c) 2009 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 firstname.lastname@example.org.
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
email@example.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.
Last modified on: Monday, 16-Mar-09 21:08:33
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to firstname.lastname@example.org
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----