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CVE-2020-11526 Explained : Impact and Mitigation

Learn about CVE-2020-11526, an Out-of-bounds Read vulnerability in FreeRDP versions > 1.1 through 2.0.0-rc4. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.

FreeRDP versions > 1.1 through 2.0.0-rc4 has an Out-of-bounds Read vulnerability.

Understanding CVE-2020-11526

libfreerdp/core/update.c in FreeRDP is affected by an Out-of-bounds Read vulnerability.

What is CVE-2020-11526?

The CVE-2020-11526 vulnerability is present in FreeRDP versions > 1.1 through 2.0.0-rc4, allowing for an Out-of-bounds Read.

The Impact of CVE-2020-11526

This vulnerability could be exploited by an attacker to read data beyond the boundaries of an allocated memory buffer, potentially leading to sensitive information exposure or a denial of service.

Technical Details of CVE-2020-11526

FreeRDP versions > 1.1 through 2.0.0-rc4 are susceptible to an Out-of-bounds Read vulnerability.

Vulnerability Description

The vulnerability exists in libfreerdp/core/update.c in FreeRDP, allowing unauthorized access to memory locations beyond the allocated buffer.

Affected Systems and Versions

        Product: Not applicable
        Vendor: Not applicable
        Versions: FreeRDP versions > 1.1 through 2.0.0-rc4

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker to read sensitive information from the memory of the affected system.

Mitigation and Prevention

Immediate Steps to Take:

        Apply security patches provided by FreeRDP promptly.
        Monitor official sources for updates and advisories regarding this vulnerability. Long-Term Security Practices:
        Regularly update software and systems to mitigate potential vulnerabilities.
        Implement network security measures to prevent unauthorized access.
        Conduct regular security audits and assessments to identify and address security gaps.
        Educate users on safe computing practices to minimize the risk of exploitation.
        Consider implementing intrusion detection systems to detect and respond to potential attacks.

Patching and Updates

        FreeRDP has released security updates to address the CVE-2020-11526 vulnerability. Ensure that you apply the latest patches to secure your systems.

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