SB2020022013 - Multiple vulnerabilities in Cisco AsyncOS for Cisco Email Security Appliance and Content Security Management Appliance
Published: February 20, 2020 Updated: February 20, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2019-1947)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists within the email message filtering feature due to improper handling of email messages that contain large attachments. A remote attacker can send a malicious email message through the targeted device and cause a permanent DoS condition due to high CPU utilization.
2) Input validation error (CVE-ID: CVE-2019-1983)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists within the email message filtering feature due to insufficient input validation of email attachments. A remote attacker can send an email message with a crafted attachment through an affected
device and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.