Cisco has published a security advisory, highlighting a vulnerability in the following products listed below on the 27th of October 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Cisco FTD Software multiple versions
Open-Source Snort versions prior to 3.1.0.100
Cisco ASA Software multiple versions
Cisco FMC Software multiple versions
For more information on these updates, you can follow these URLs:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa- snort-dos-RywH7ezM
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Cisco Security Advisory.pdf
References
Cisco security advisory (27th October 2021). Retrieved from Canadian Centre for Cyber Security.
https://www.cyber.gc.ca/en/alerts/cisco-security-advisory-95
Cisco security advisory (27th October 2021). Retrieved from Cisco.
https://tools.cisco.com/security/center/publicationListing.x