SB2022110402 - Denial of service in Cisco Email Security Appliance
Published: November 4, 2022
Security Bulletin ID
SB2022110402
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2022-20960)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of certain TLS connections processed by the device. A remote attacker can cause the device to drop new TLS email messages that come from the associated email servers.
Remediation
Install update from vendor's website.