ISS patches hole in BlackICE firewall

A week after first issuing an alert about the problem, firewall and intrusion-detection system vendor Internet Security Systems (ISS) released a patch to fix a security flaw in its BlackICE security products that could have led to a denial-of-service attack.

The flaw affects BlackICE Defender, BlackICE Agent and RealSecure Server Sensor running on Windows 2000 and Windows XP and can be exploited by sending a flood of modified ping packets to the vulnerable system, ISS said in its alert. The flood of packets would cause the applications' memory to be overwritten, either crashing or destabilizing the program, ISS said. Attackers may also be able to control what part of the memory is overwritten, allowing them to execute code of their choice, ISS continued.

The risk of the flaw to corporate users is likely to be small, according to ISS, since most corporate firewalls are configured to block the kind of traffic that would be used in this attack.

Affected versions of the software are: BlackICE Defender 2.9, BlackICE Defender for Server 2.9, BlackICE Agent for Workstation 3.0 and 3.1 and BlackICE Agent for Server 3.0 and 3.1, all on Windows 2000 and XP. RealSecure Server Sensor 6.0.1 and 6.5 on Windows 2000 are also affected.

Links to the appropriate patches are available on the front page of ISS' Web site, located at http://www.iss.net.

ISS acquired the BlackICE line of products in May 2001 when it purchased Network ICE Corp.

Join the newsletter!

Or
Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.
Show Comments

Essentials

James Cook University - Master of Data Science Online Course

Learn more >

Mobile

Sansai 6-Outlet Power Board + 4-Port USB Charging Station

Learn more >

Exec

Budget

Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?