CVE-2017-6678: cisco virtualized_packet_core Resource Management Errors

Vulnerability summary

CVE-2017-6678 is a high (CVSS 7.8) Resource Management Errors vulnerability in cisco virtualized_packet_core. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.3% of scored vulnerabilities.

Timeline

1. 26-06-2017
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the ingress UDP packet processing functionality of Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software 19.2 through 21.0 could allow an unauthenticated, remote attacker to cause both control function (CF) instances on an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient handling of user-supplied data by the affected software. An attacker could exploit this vulnerability by sending crafted UDP packets to the distributed instance (DI) network addresses of both CF instances on an affected system. A successful exploit could allow the attacker to cause an unhandled error condition on the affected system, which would cause the CF instances to reload and consequently cause the entire VPC to reload, resulting in the disconnection of all subscribers and a DoS condition on the affected system. This vulnerability can be exploited via IPv4 traffic only. Cisco Bug IDs: CSCvc01665 CSCvc35565.

• CWE-399Resource Management ErrorsWeaknesses in this category are related to improper management of system resources.
• CWE-755Improper Handling of Exceptional ConditionsThe product does not handle or incorrectly handles an exceptional condition.