CVE-2021-1353

Cisco StarOS IPv4 Denial of Service Vulnerability

Description

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.

Category

5.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory cisco.com
Affected: Cisco Cisco ASR 5000 Series Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr-mem-leak-dos-MTWGHKk3 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1353?
CVE-2021-1353 has been scored as a medium severity vulnerability.
How to fix CVE-2021-1353?
To fix CVE-2021-1353, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-1353 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1353 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1353?
CVE-2021-1353 affects Cisco Cisco ASR 5000 Series Software.
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