SB2024102366 - Denial of service in Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN



SB2024102366 - Denial of service in Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN

Published: October 23, 2024

Security Bulletin ID SB2024102366
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Access of Memory Location After End of Buffer (CVE-ID: CVE-2024-20402)

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

The vulnerability exists due to a logic error in memory management when the device is handling SSL VPN connections. A remote attacker can send specially crafted SSL/TLS packets to the SSL VPN server of the affected device and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.