Cisco Systems is warning of three vulnerabilities within its Internet Operating System (IOS) software that could allow a denial-of-service (DoS) attack or let a hacker run arbitrary code on an affected switch router.The company has published workarounds and issued an updated version of the software.The three problems are: TCP packet problem: A memory leak in certain versions of IOS could lead to a DoS attack, according to an advisory from the U.S. Computer Emergency Readiness Team (CERT). IPv6 router header vulnerability: IOS can fail to properly process IPv6 packets with specially crafted routing heads, which could allow a DoS attack or the running of arbitrary code. IPv6 is a set of specifications that enables more IP addresses to be available on the Internet. Crafted IP option vulnerability: This is a bug concerning how IOS processes IPv4 packets with a specially crafted IP option, CERT said. It could also enable a DoS attack or the running of arbitrary code.CERT wrote that all three vulnerabilities could cause a device to reload its OS. In that case, a secondary, sustained DoS condition could be caused since packets won’t go through the device. “Because devices running IOS may transmit traffic for a number of other networks, the secondary impacts of a denial of service may be severe,” CERT said.-Jeremy Kirk, IDG News Service (London Bureau) Check out our CIO News Alerts and Tech Informer pages for more updated news coverage. Related content brandpost The steep cost of a poor data management strategy Without a data management strategy, organizations stall digital progress, often putting their business trajectory at risk. Here’s how to move forward. By Jay Limbasiya, Global AI, Analytics, & Data Management Business Development, Unstructured Data Solutions, Dell Technologies Jun 09, 2023 6 mins Data Management feature How Capital One delivers data governance at scale With hundreds of petabytes of data in operation, the bank has adopted a hybrid model and a ‘sloped governance’ framework to ensure its lines of business get the data they need in real-time. By Thor Olavsrud Jun 09, 2023 6 mins Data Governance Data Management feature Assessing the business risk of AI bias The lengths to which AI can be biased are still being understood. The potential damage is, therefore, a big priority as companies increasingly use various AI tools for decision-making. By Karin Lindstrom Jun 09, 2023 4 mins CIO Artificial Intelligence IT Leadership brandpost Rebalancing through Recalibration: CIOs Operationalizing Pandemic-era Innovation By Kamal Nath, CEO, Sify Technologies Jun 08, 2023 6 mins CIO Digital Transformation Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe