SB2023111732 - Denial of service in FortiOS and FortiProxy SSL VPN
Published: November 17, 2023
Security Bulletin ID
SB2023111732
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) NULL pointer dereference (CVE-ID: CVE-2023-36641)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing HTTP headers in SSL VPN. A remote user can send a specially crafted HTTP request to the system and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.