#VU56839 Resource exhaustion in Cisco cBR-8 Converged Broadband and Cisco IOS XE - CVE-2021-1622

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Main Vulnerability Database Vulnerabilities #VU56839

#VU56839 Resource exhaustion in Cisco cBR-8 Converged Broadband and Cisco IOS XE - CVE-2021-1622

Published: September 23, 2021


Vulnerability identifier: #VU56839
Vulnerability risk: High
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:Amber
CVE-ID: CVE-2021-1622
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco cBR-8 Converged Broadband
Cisco IOS XE
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a deadlock condition in the code when processing Common Open Policy Service (COPS) packets. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links