CVE-2017-6678
First published: Mon Jun 26 2017(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Virtualized Packet Core | =v19.2_base | |
| Cisco Virtualized Packet Core | =v19.3_base | |
| Cisco Virtualized Packet Core | =v20.0_base | |
| Cisco Virtualized Packet Core | =v20.1_base | |
| Cisco Virtualized Packet Core | =v20.2_base | |
| Cisco Virtualized Packet Core | =v21.0_base |
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Reference Links
Frequently Asked Questions
What is the vulnerability severity of CVE-2017-6678?
CVE-2017-6678 is considered a high severity vulnerability due to its potential to cause control function instances to reload.
How can I mitigate CVE-2017-6678?
To mitigate CVE-2017-6678, it is recommended to upgrade to a fixed version of Cisco Virtualized Packet Core Software.
Which Cisco Virtualized Packet Core versions are affected by CVE-2017-6678?
CVE-2017-6678 affects Cisco Virtualized Packet Core versions 19.2 to 21.0.
Who can exploit CVE-2017-6678?
CVE-2017-6678 can be exploited by unauthenticated, remote attackers.
What could happen if CVE-2017-6678 is successfully exploited?
Exploitation of CVE-2017-6678 could lead to both control function instances on the affected system reloading, disrupting services.
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- agent/tags
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- collector/nvd-index
- vendor/cisco
- canonical/cisco virtualized packet core
- version/cisco virtualized packet core/v19.2_base
- version/cisco virtualized packet core/v19.3_base
- version/cisco virtualized packet core/v20.0_base
- version/cisco virtualized packet core/v20.1_base
- version/cisco virtualized packet core/v20.2_base
- version/cisco virtualized packet core/v21.0_base