CWE Code: 119
Vulnerability Type: privilege_escalation
CVSS Score: 10.0
CWE Name:  Improper Restriction of Operations within the Bounds of a Memory Buffer
Summary: a vulnerability in the quality of service (qos) subsystem of cisco ios software and cisco ios xe software could allow an unauthenticated, remote attacker to cause a denial of service (dos) condition or execute arbitrary code with elevated privileges. the vulnerability is due to incorrect bounds checking of certain values in packets that are destined for udp port 18999 of an affected device. an attacker could exploit this vulnerability by sending malicious packets to an affected device. when the packets are processed, an exploitable buffer overflow condition may occur. a successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. the attacker could also leverage this vulnerability to cause the device to reload, causing a temporary dos condition while the device is reloading. the malicious packets must be destined to and processed by an affected device. traffic transiting a device will not trigger the vulnerability. cisco bug ids: cscvf73881.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: NETWORK
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2018-03-28
Last Modified Date: 2019-10-09