Denial of Service Vulnerability in Cisco Virtualized Packet Core Software
CVE-2017-6678

7.5HIGH

Key Information:

Vendor
Cisco
Status
Cisco Virtualized Packet Core-distributed Instance
Vendor
CVE Published:
26 June 2017

Summary

A vulnerability exists in the ingress UDP packet processing functionality of Cisco's Virtualized Packet Core-Distributed Instance Software, impacting versions 19.2 through 21.0. This issue stems from inadequate handling of user-supplied data, allowing unauthenticated remote attackers to exploit the vulnerability by sending specifically crafted UDP packets to the network addresses of control function instances. A successful attack can cause both instances to reload, resulting in a denial of service condition that disconnects all subscribers and affects the overall functionality of the system. The vulnerability is exclusively exploitable via IPv4 traffic.

Affected Version(s)

Cisco Virtualized Packet Core-Distributed Instance Cisco Virtualized Packet Core-Distributed Instance

References

http://www.securityfocus.com/bid/99195
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https://tools.cisco.com/security/center/content/CiscoSecu...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.