#VU46248 Inefficient Algorithmic Complexity in Cisco AsyncOS for Cisco Email Security Appliance - CVE-2020-3548

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Main Vulnerability Database Vulnerabilities #VU46248

#VU46248 Inefficient Algorithmic Complexity in Cisco AsyncOS for Cisco Email Security Appliance - CVE-2020-3548

Published: September 3, 2020


Vulnerability identifier: #VU46248
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3548
CWE-ID: CWE-407
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco AsyncOS for Cisco Email Security Appliance
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to inefficient processing of incoming Transport Layer Security (TLS) traffic. A remote attacker can send specially crafted TLS packets, trigger a prolonged state of high CPU utilization and perform a denial of service (DoS) attack.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links