CVE-2020-11017 : Vulnerability Insights and Analysis
Learn about CVE-2020-11017, a double free vulnerability in cliprdr_server_receive_capabilities in FreeRDP <= 2.0.0. Find out the impact, affected systems, exploitation details, and mitigation steps.
CVE-2020-11017, assigned by GitHub_M, pertains to a double free vulnerability in cliprdr_server_receive_capabilities in FreeRDP.
Understanding CVE-2020-11017
What is CVE-2020-11017?
In FreeRDP versions less than or equal to 2.0.0, a malicious client can exploit manipulated input to trigger a double free condition, leading to a server crash. The issue has been resolved in version 2.1.0.
The Impact of CVE-2020-11017
The vulnerability allows a malicious client to crash the server by creating a double free condition, potentially disrupting services and causing denial of service.
Technical Details of CVE-2020-11017
Vulnerability Description
The vulnerability involves a double free condition in cliprdr_server_receive_capabilities in FreeRDP.
Affected Systems and Versions
- Vendor: FreeRDP
- Product: FreeRDP
- Affected Versions: <= 2.0.0
Exploitation Mechanism
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact: High availability impact with a base score of 6.5 (CVSS:3.1)
Mitigation and Prevention
Immediate Steps to Take
- Upgrade FreeRDP to version 2.1.0 or later to mitigate the vulnerability.
- Monitor for any unusual server crashes or behavior that could indicate exploitation.
Long-Term Security Practices
- Regularly update software and apply patches promptly to address known vulnerabilities.
- Implement network segmentation and access controls to limit exposure to potential threats.
Patching and Updates
- Stay informed about security advisories from FreeRDP and apply patches as soon as they are available.