CVE-2020-11266 Explained : Impact and Mitigation

Snapdragon Wired Infrastructure and Networking by Qualcomm, Inc. is affected by a vulnerability that can lead to QSEE information leakage due to image address dereferencing without proper validation.

Understanding CVE-2020-11266

What is CVE-2020-11266?

The vulnerability involves a buffer over-read in Trustzone, potentially resulting in QSEE information leakage in Snapdragon Wired Infrastructure and Networking.

The Impact of CVE-2020-11266

The vulnerability allows attackers to leak sensitive QSEE information, posing a risk to the confidentiality of data processed by the affected systems.

Technical Details of CVE-2020-11266

Vulnerability Description

The issue arises from dereferencing image addresses without validating their range, leading to potential information leakage.

Affected Systems and Versions

Product: Snapdragon Wired Infrastructure and Networking
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 by malicious actors to read beyond the allocated buffer, potentially accessing sensitive information.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability.
Monitor for any unusual activities on the affected systems.

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent security vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm to ensure timely mitigation of vulnerabilities.