Cisco has disclosed fixes for a bug affecting AsyncOS for Cisco email security appliances, which are prone to a "permanent" denial of service (DoS) because the software doesn’t properly validate S/MIME-signed emails



From Reddit Netsec:

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The original content can be found here: Cisco has disclosed fixes for a bug affecting AsyncOS for Cisco email security appliances, which are prone to a "permanent" denial of service (DoS) because the software doesn't properly validate S/MIME-signed emails

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