SB2021040619 - Stack-based buffer overflow in FortiProxy
Published: April 6, 2021
Security Bulletin ID
SB2021040619
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) Stack-based buffer overflow (CVE-ID: CVE-2019-17656)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing HTTP PUT requests in FortiProxy HTTPD daemon. A remote authenticated user can send a specially crafted HTTP PUT request, trigger stack-based buffer overflow and crash the daemon.
Remediation
Install update from vendor's website.