CVE-2020-11256 Explained : Impact and Mitigation

A memory corruption vulnerability in Snapdragon Wired Infrastructure and Networking has been identified, potentially leading to exploitation due to a lack of validation of a pointer to a buffer passed to TrustZone.

Understanding CVE-2020-11256

This CVE involves a memory corruption issue in Qualcomm's Snapdragon Wired Infrastructure and Networking, which could be exploited through a specific vulnerability in TrustZone.

What is CVE-2020-11256?

The vulnerability stems from a failure to properly validate a pointer to a buffer passed to TrustZone within Snapdragon Wired Infrastructure and Networking.

The Impact of CVE-2020-11256

The exploitation of this vulnerability could result in memory corruption, potentially allowing an attacker to execute arbitrary code or disrupt system operations.

Technical Details of CVE-2020-11256

Qualcomm's Snapdragon Wired Infrastructure and Networking is affected by this vulnerability, impacting specific versions.

Vulnerability Description

The vulnerability arises from a lack of validation of a pointer to a buffer passed to TrustZone, leading to memory corruption.

Affected Systems and Versions

Product: Snapdragon Wired Infrastructure and Networking
Vendor: Qualcomm, Inc.
Affected Versions: AR7420, AR9580, CSR8811, IPQ4018, IPQ4019, IPQ4028, IPQ4029, QCA10901, QCA4024, QCA7500, QCA7520, QCA7550, QCA8075, QCA9880, QCA9886, QCA9888, QCA9889, QCA9898, QCA9984, QCA9992, QCA9994, QCN3018, QFE1922, QFE1952, WCD9340, WSA8810

Exploitation Mechanism

The vulnerability can be exploited through the misuse of a pointer to a buffer passed to TrustZone, potentially leading to memory corruption and unauthorized code execution.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2020-11256.

Immediate Steps to Take

Apply security patches provided by Qualcomm promptly.
Monitor official sources for updates and security advisories.
Implement network segmentation and access controls to limit exposure.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users and administrators on secure coding practices.
Maintain up-to-date security configurations and best practices.

Patching and Updates

Regularly check for security updates and patches from Qualcomm.
Ensure timely deployment of patches to mitigate the risk of exploitation.