Resource management error in Cisco cBR-8 Converged Broadband and Cisco IOS XE - CVE-2021-1623

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU56840

Resource management error in Cisco cBR-8 Converged Broadband and Cisco IOS XE - CVE-2021-1623

Published: September 23, 2021


Vulnerability identifier: #VU56840
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1623
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper management of internal resources in the Simple Network Management Protocol (SNMP) punt handling function. A remote authenticated attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Affected software

Cisco cBR-8 Converged Broadband
Cisco IOS XE

How to mitigate CVE-2021-1623

Install updates from vendor's website.

Cisco IOS XE - update to 17.6.1a

External References

Related Security Bulletins