Multiple Vulnerabilities Found in Symantec Client Products

By Larry Seltzer  |  Posted 2004-05-12 Print this article Print

Remote attackers could disable or take control of systems running Symantec clients, including Norton Internet Security.

Symantec has acknowledged several serious bugs in several of its client security products in both corporate and consumer editions. The problems, reported to Symantec Corp. by eEye Digital Security, involve several functions of the products but one specific file, SYMDNS.SYS. Symantec has provided a brief description, stating that fixes for all of the problems are available through its LiveUpdate and technical-support channels.

Products affected include Symantec Client Firewall versions 5.0.0 through 5.1.1; Symantec Client Security 1.0.0, 1.1.0 and 2.0.0; Norton AntiSpam 2004; Norton Internet Security 2002 through 2004; and Norton Internet Security Professional Edition 2002 through 2004.

For insights on security coverage around the Web, check out Security Center Editor Larry Seltzers Weblog. DNS response is one of the functions listed as having such an error. A malicious response to a DNS request could cause the program to fail or alter the flow of the program. There are also errors in the processing of NetBIOS Name Service responses that could allow remote code execution or denial of service. Since NetBIOS is not a routable protocol, such attacks would have to come from within a network segment.

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Larry Seltzer has been writing software for and English about computers ever since—,much to his own amazement—,he graduated from the University of Pennsylvania in 1983.

He was one of the authors of NPL and NPL-R, fourth-generation languages for microcomputers by the now-defunct DeskTop Software Corporation. (Larry is sad to find absolutely no hits on any of these +products on Google.) His work at Desktop Software included programming the UCSD p-System, a virtual machine-based operating system with portable binaries that pre-dated Java by more than 10 years.

For several years, he wrote corporate software for Mathematica Policy Research (they're still in business!) and Chase Econometrics (not so lucky) before being forcibly thrown into the consulting market. He bummed around the Philadelphia consulting and contract-programming scenes for a year or two before taking a job at NSTL (National Software Testing Labs) developing product tests and managing contract testing for the computer industry, governments and publication.

In 1991 Larry moved to Massachusetts to become Technical Director of PC Week Labs (now eWeek Labs). He moved within Ziff Davis to New York in 1994 to run testing at Windows Sources. In 1995, he became Technical Director for Internet product testing at PC Magazine and stayed there till 1998.

Since then, he has been writing for numerous other publications, including Fortune Small Business, Windows 2000 Magazine (now Windows and .NET Magazine), ZDNet and Sam Whitmore's Media Survey.

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