Denial of service in Cisco IOS XE and Cisco IOS - CVE-2017-3849
Published: March 22, 2017
Vulnerability identifier: #VU6158
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-2017-3849
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an unauthenticated, adjacent attacker to cause DoS conditions.
The vulnerability exists in Autonomic Networking Infrastructure (ANI) registrar feature due to incomplete input validation. An attacker can send a specially crafted autonomic network channel discovery packet and cause the affected device to reload.
Successful exploitation of the vulnerability results in denial of service on the vulnerable device.
The vulnerability exists in Autonomic Networking Infrastructure (ANI) registrar feature due to incomplete input validation. An attacker can send a specially crafted autonomic network channel discovery packet and cause the affected device to reload.
Successful exploitation of the vulnerability results in denial of service on the vulnerable device.
Affected software
Cisco IOS XE
Cisco IOS
Cisco IOS
How to mitigate CVE-2017-3849
Install update from vendor's website.