Resource exhaustion in Cisco IOS XE - CVE-2018-0165
Published: March 30, 2018
Vulnerability identifier: #VU11357
CSH Severity: Medium
CVSS v4: 7.1 [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]
CVE-ID: CVE-2018-0165
CWE-ID: CWE-400
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Cisco IOS XE
How to mitigate CVE-2018-0165
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.