SB2023060741 - Denial of service in Cisco ASA and FTD on Cisco Firepower 2100 Series
Published: June 7, 2023
Security Bulletin ID
SB2023060741
CSH 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 vulnerability.
1) Input validation error (CVE-ID: CVE-2023-20006)
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 due to an implementation error within the cryptographic functions for SSL/TLS
traffic processing when they are offloaded to the hardware. A remote attacker can send a specially crafted stream of SSL/TLS traffic to an affected device and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.