Memory corruption in Cisco IOS XE - CVE-2018-0315
Published: June 6, 2018 / Updated: June 7, 2018
Vulnerability identifier: #VU13217
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-0315
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The vulnerability exists in the authentication, authorization, and accounting (AAA) security services of Cisco IOS XE Software due to boundary error when the software parses a username during login authentication. A remote unauthenticated attacker can attempt to authenticate to an affected device, trigger memory corruption and cause the affected device to reload or execute arbitrary code with elevated privileges.
Affected software
Cisco IOS XE
How to mitigate CVE-2018-0315
Update to versions 16.9(0.91), 16.8(1.69), 16.8(1.10), 16.8(0.294), 16.8(0.277), 16.7(1.142).
Cisco IOS XE - addressed in versions 16.7.1.142, 16.8.0.277, 16.8.0.294, 16.8.1.10, 16.8.1.69, 16.9.0.91