Denial of service in Cisco IOS and Cisco IOS XE - CVE-2017-3849
Published: March 22, 2017
Vulnerability identifier: #VU6158
CSH Severity: Medium
CVSS v4.0: 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-2017-3849
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS
Cisco IOS XE
Cisco IOS
Cisco IOS XE
Detailed vulnerability description
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.
How to mitigate CVE-2017-3849
Install update from vendor's website.