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Cisco Bug: CSCvr96489 - Cisco Email Security Appliance Uncontrolled Resource Exhaustion Vulnerability

Last Modified

Jul 29, 2020

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases

12.5.0-066

Description (partial)

Symptom:
A vulnerability in the malware detection functionality in Cisco Advanced Malware Protection (AMP) in Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated remote attacker to exhaust resources on an affected device.

The vulnerability is due to insufficient control over system memory allocation. An attacker could exploit this vulnerability by sending a crafted email through the targeted device. A successful exploit could allow the attacker to cause an email attachment that contains malware to be delivered to a user and cause email processing delays.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-resource-exhaust-D7RQAhnD

Conditions:
At the time of publication, this vulnerability affected Cisco AsyncOS Software for Cisco ESA releases 13.0.0 and earlier.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

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