SB2019022102 - Denial of service in Microsoft Windows
Published: February 21, 2019
Security Bulletin ID
SB2019022102
Severity
Low
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) Resource exhaustion (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to resource exhaustion when handling malicious input. A remote attacker can send malicious HTTP/2 requests to a Windows Server running Internet Information Services (IIS), cause the system CPU usage to spike to 100% until the malicious connections are killed by IIS and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.