SB2021061501 - Denial of service in SonicOS
Published: June 15, 2021
Security Bulletin ID
SB2021061501
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) Buffer overflow (CVE-ID: CVE-2021-20027)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing HTTP headers. A remote attacker can send a specially crafted HTTP request to the system, trigger a buffer overflow and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.