#VU11339 Resource management errors in Cisco IOS XE - CVE-2018-0180
Published: March 29, 2018 / Updated: March 8, 2022
Vulnerability identifier: #VU11339
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2018-0180
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Cisco IOS XE
Cisco IOS XE
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists due to an attempt to free an area of memory that has not been previously allocated. A remote attacker can attempt to log in via Secure Shell (SSH) or Telnet with invalid credentials multiple times while the administrator modifies the login block-for configuration and cause the service to crash.
The weakness exists due to an attempt to free an area of memory that has not been previously allocated. A remote attacker can attempt to log in via Secure Shell (SSH) or Telnet with invalid credentials multiple times while the administrator modifies the login block-for configuration and cause the service to crash.
Remediation
Update to versions 15.7(3.1.8A)OT, 15.7(3.1.4A)OT, 15.6(3)M, 15.6(2.19)T, 15.6(2.0.1a)T0, 15.5(3)M6 or 15.4(3)M6.