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Malicious Emails Can Crash Cisco Email Security Appliances
Malware and Vulnerabilities
February 17, 2022
Security Week
The vulnerability, tracked as CVE-2022-20653, affects the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for ESA.
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Cisco Email Security Appliance (ESA)
Denial of Service Vulnerability
Insufficient Error Handling
specially-crafted emails
DNS-based Authentication of Named Entities (DANE)
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