Cisco’s semiannual FXOS and NX-OS security advisory bundle resolves two high- and two medium-severity vulnerabilities. The post Cisco Patches High-Severity Vulnerabilities in Data Center OS appeared first on SecurityWeek. Read More
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Cisco NX-OS Software External Border Gateway Protocol Denial of Service Vulnerability
Summary
- A vulnerability in the External Border Gateway Protocol (eBGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.This vulnerability exists because eBGP traffic is mapped to a shared hardware rate-limiter queue. An attacker could exploit this vulnerability by sending large amounts of network traffic with certain characteristics through an affected device. A successful exploit could allow the attacker to cause eBGP neighbor sessions to be dropped, leading to a DoS condition in the network.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.