Denial of service in Cisco Email Security Appliance and Cisco AsyncOS for Cisco Email Security Appliance - CVE-2016-1486

 

Denial of service in Cisco Email Security Appliance and Cisco AsyncOS for Cisco Email Security Appliance - CVE-2016-1486

Published: October 27, 2016 / Updated: April 5, 2018


Vulnerability identifier: #VU1081
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-1486
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote unauthenticated user to cause the target system to cease forward messages.
The weakness is due to insufficient validation of input data. By sending an email message with a specially crafted UUencoded file, a remote attacker can trigger a flaw in the Advanced Malware Protection (AMP) function and cause the mail handling process to restart.
Successful exploitation of the vulnerability results in denial of service on the vulnerable system.

Affected software

Cisco Email Security Appliance
Cisco AsyncOS for Cisco Email Security Appliance

How to mitigate CVE-2016-1486

Update to version 9.7.2-065, 10.0.0-203.


External References

Related Security Bulletins