SB2018031317 - Denial of service in Microsoft PowerShell Core
Published: March 13, 2018
Security Bulletin ID
SB2018031317
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) Improper input validation (CVE-ID: CVE-2018-0875)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the way that .NET Core handles specially crafted requests. A remote attacker can send a small number of specially crafted requests to an .NET Core web application, trigger a hash collision and cause performance to degrade significantly enough to cause service crash.
Remediation
Install update from vendor's website.