#VU47240 State Issues in Cisco IOS XE - CVE-2020-3422
Published: September 24, 2020 / Updated: October 1, 2020
Vulnerability identifier: #VU47240
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:U/U:Green
CVE-ID: CVE-2020-3422
CWE-ID: CWE-371
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XE
Cisco IOS XE
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perofrm a denial of service (DoS) attack.
The vulnerability exists due to the IP Service Level Agreement (SLA) responder feature could consume a port that could be used by another feature. A remote attacker can send specific IP SLA control packets and cause an in-use port to be consumed by the IP SLA responder, resulting in a denial of service condition.
Remediation
Install updates from vendor's website.