CVE-2021-1353 MEDIUM

CVE-2021-1353: Cisco StarOS IPv4 Denial of Service Vulnerability

Vendor Cisco
Product Cisco ASR 5000 Series Software
Weakness CWE-401
Published January 20, 2021
Last update November 12, 2024

CVSS base score

5.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

What the vulnerability does

01Description

A vulnerability in the IPv4 protocol handling of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory leak that occurs during packet processing. An attacker could exploit this vulnerability by sending a series of crafted IPv4 packets through an affected device. A successful exploit could allow the attacker to exhaust the available memory and cause an unexpected restart of the npusim process, leading to a DoS condition on the affected device.

Key dates

02Disclosure timeline

January 20, 2021 CVE published
November 12, 2024 Record updated