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Cisco ASR 1000 Series Aggregation Services Routers Data-Plane Processing Denial of Service Vulnerability

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

3 years ago

Summary

Cisco ASR 1000 Series Aggregation Services Routers contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition.

Insight

Insight

The vulnerability is due to the processing of excessive number of IPv4 packets that require fragmentation and reassembly. An attacker could exploit this vulnerability by sending an excessive number of fragmented packets, causing high Cisco QuantumFlow Processor (QFP) CPU utilization in the Embedded Services Processor (ESP).

Affected Software

Affected Software

Cisco ASR 1000 Series 15.5 Base, (3)S

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Please see the vendor advisory for more information and released fixes.

Common Vulnerabilities and Exposures (CVE)