SB2024102366 - Denial of service in Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN
Published: October 23, 2024
Security Bulletin ID
SB2024102366
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) Access of Memory Location After End of Buffer (CVE-ID: CVE-2024-20402)
CWE-ID: CWE-788 - Access of Memory Location After End of Buffer
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 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.