Denial of service in Cisco Virtualized Packet Core - CVE-2017-6678
Published: June 23, 2017
Vulnerability identifier: #VU7184
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-6678
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the ingress UDP packet processing functionality of Cisco Virtualized Packet Core−Distributed Instance (VPC−DI) Software due to insufficient handling of user-supplied data. A remote attacker can send specially crafted UDP packets to the distributed instance (DI) network addresses of both CF instances, trigger an unhandled error condition and cause the CF instances and the entire VPC to reload.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists in the ingress UDP packet processing functionality of Cisco Virtualized Packet Core−Distributed Instance (VPC−DI) Software due to insufficient handling of user-supplied data. A remote attacker can send specially crafted UDP packets to the distributed instance (DI) network addresses of both CF instances, trigger an unhandled error condition and cause the CF instances and the entire VPC to reload.
Successful exploitation of the vulnerability results in denial of service.
Affected software
Cisco Virtualized Packet Core
How to mitigate CVE-2017-6678
Install update from vendor's website.