CVE-2020-11046 Explained : Impact and Mitigation

CVE-2020-11046, assigned by GitHub_M, relates to an improper restriction of operations within the bounds of a memory buffer in FreeRDP.

Understanding CVE-2020-11046

What is CVE-2020-11046?

In FreeRDP versions after 1.0 and before 2.0.0, a vulnerability exists in the update_read_synchronize function, leading to a stream out-of-bounds seek that could result in a subsequent out-of-bounds read.

The Impact of CVE-2020-11046

This vulnerability could be exploited to trigger an out-of-bounds read, potentially leading to information disclosure or further attacks.

Technical Details of CVE-2020-11046

Vulnerability Description

The issue arises from improper bounds checking in the FreeRDP software, allowing an attacker to read beyond the allocated memory buffer.

Affected Systems and Versions

Vendor: FreeRDP
Product: FreeRDP
Affected Versions: > 1.0, < 2.0.0

Exploitation Mechanism

The vulnerability can be exploited by manipulating the update_read_synchronize function to seek outside the bounds of the allocated memory buffer.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security updates provided by FreeRDP.
Monitor vendor advisories for patches and guidance.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential exploits.
Conduct regular security assessments and audits to identify and address security weaknesses.

Patching and Updates

Ensure that all affected systems are updated with the latest patches and security fixes to address the vulnerability.