VMware, Cisco Systems issue security warnings

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IT administrators have been warned by two of the biggest suppliers of enterprise products of security vulnerabilities. VMware issued an “important” alert this week for updates after finding 30 of its products are vulnerable to the recently discovered Linux kernel TCP Selective Acknowledgement (SACK) vulnerabilities. Those bugs could lead to a distributed denial of service attack against those products, the company said.

Meanwhile Cisco Systems said it is updating the firmware on a number of its Small Business 250, 350, 350X switches and 550X as well as the FindIT Network Probe after researchers at a security firm discovered that by using a third party software library security certificates from a Huawei Techonologies subsidiary had been included in the Cisco products.

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