#VU56421 Resource management error in Cisco ASR 9000 Series Aggregation Services Routers and Cisco ASR 9001 Router - CVE-2021-34713 

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Main Vulnerability Database Vulnerabilities #VU56421

#VU56421 Resource management error in Cisco ASR 9000 Series Aggregation Services Routers and Cisco ASR 9001 Router - CVE-2021-34713

Published: September 9, 2021


Vulnerability identifier: #VU56421
Vulnerability risk: Medium
CVSSv4.0: 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-2021-34713
CWE-ID: CWE-399
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco ASR 9000 Series Aggregation Services Routers
Cisco ASR 9001 Router
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 improper management of internal resources in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers. A remote attacker on the local network can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links