Cisco NX-OS Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are not available.
To exploit this vulnerability, an attacker would likely need access to trusted, internal networks to send LDP Hello messages to an affected device. This access requirement limits the possibility of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Cisco has released a security notice at the following link: CVE-2014-0677
Customers are advised to consult Cisco bug ID CSCul88851 for the most complete list of affected product versions.
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.