SB2022042128 - Denial of service in Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software
Published: April 21, 2022
Security Bulletin ID
SB2022042128
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) Insufficient verification of data authenticity (CVE-ID: CVE-2022-20795)
The vulnerability allows a remote attacker to compromsie the target system.
The vulnerability exists due to suboptimal processing that occurs when establishing a Datagram TLS (DTLS) tunnel as part of an AnyConnect SSL VPN connection. A remote attacker can send specially crafted DTLS traffic and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.