Skip to content

Biting the hand that feeds IT

The Register ®

Hardware:


Related Whitepapers

[Print][Mobile][Alerts]

Cisco warns over DNS glitch

Many products affected, overtime potential high

Published Thursday 26th May 2005 14:41 GMT

Cisco is advising users of its IP telephony kit to update their software following the discovery of a flaw that might allow hackers to mount denial of service attacks. The bug, involving flaws in the processing of maliciously crafted DNS (Domain Name System) packets, also affects some of Cisco's content networking and secure router products.

The vulnerability is limited to Cisco products running DNS clients, rather than DNS Server functions, and creates a means for remote attackers to crash vulnerable devices, Cisco warns. Cisco has made a series of free software upgrades available to address the vulnerability. The scope of the vulnerability - and the number of products affected - promises to create a lot of work in Cisco shops, so users are advised to scope out remedial work sooner rather than later. More technical details (but not a list of affected vendors) can be found in a UK government UNIRAS alert here. ®

Related stories

Unholy trio pose DDoS risk for Cisco kit
Cisco patches VoIP vuln
Networks on yellow alert over ICMP flaw
Cisco source code theft part of 'mega-hack'

Track this type of story as a custom Atom/RSS feed or by email.
Previous Article Next Article
whitepaper title

Solution Brief: Reduce Energy Costs

Energy consumption has become a big issue. Dramatically increase server utilization and significantly reduce energy costs through Virtualization..
whitepaper title

Server Consolidation and Containment

This paper discusses how consolidation and containment solutions with a virtual infrastructure meet the challenges of server sprawl and underutilization..
Whitepapers

Top 20 storiesAll The Week’s HeadlinesArchiveSearch