Vulnerability Description
A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could allow the attacker to crash the device in such a manner that manual intervention is required to recover. This vulnerability affects all Cisco IOS XR platforms that are running release 6.1.1 of Cisco IOS XR Software when the gRPC service is enabled on the device. The gRPC service is not enabled by default. Cisco Bug IDs: CSCvb14441.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xr | 6.1.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/98284Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038393
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/98284Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038393
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2017-3876?
CVE-2017-3876 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected devic...
How severe is CVE-2017-3876?
CVE-2017-3876 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-3876?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xr.