#VU11357 Resource exhaustion in Cisco IOS XE - CVE-2018-0165
Published: March 30, 2018
Vulnerability identifier: #VU11357
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-0165
CWE-ID: CWE-400
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XE
Cisco IOS XE
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the Internet Group Management Protocol (IGMP) packet-processing functionality due to insufficiently processing of IGMP Membership Query packets. An adjacent attacker can send a large number of specially crafted IGMP Membership Query packets, trigger buffer exhaustion and cause the service to crash.
The weakness exists in the Internet Group Management Protocol (IGMP) packet-processing functionality due to insufficiently processing of IGMP Membership Query packets. An adjacent attacker can send a large number of specially crafted IGMP Membership Query packets, trigger buffer exhaustion and cause the service to crash.
Remediation
Update to versions 16.7(0.83), 16.6(1.3), 16.6(0.244), 16.3.5b, 16.3.5, 16.3(4.60), 15.2(5.5.64)E, 15.2(5.5.63)E, 15.2(5.0.73)E, 15.2(5)E, 15.2(4)E3, 15.2(4)E2, 15.2(4)E1, 3.9(0)E or 3.8(1)E.