CVE-2020-11293 : Security Advisory and Response

A vulnerability in Widevine TA can lead to an out-of-bound read in various Qualcomm Snapdragon products.

Understanding CVE-2020-11293

This CVE describes a security issue in Qualcomm Snapdragon products that could result in an out-of-bound read due to a lack of buffer length validation.

What is CVE-2020-11293?

The vulnerability allows for an out-of-bound read in Widevine TA during data copying to a buffer from user data in multiple Qualcomm Snapdragon product lines.

The Impact of CVE-2020-11293

The CVSS base score for this vulnerability is 5.1, with a medium severity rating. The attack complexity is low, requiring high privileges, and has a high confidentiality impact.

Technical Details of CVE-2020-11293

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue arises from a lack of buffer length validation during data copying in Widevine TA, potentially leading to an out-of-bound read.

Affected Systems and Versions

The vulnerability affects a wide range of Qualcomm Snapdragon products, including APQ series, MDM series, MSM series, PM series, QCA series, QCM series, QCS series, QDM series, and more.

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to read sensitive data beyond the bounds of the intended buffer, potentially leading to information disclosure.

Mitigation and Prevention

To address CVE-2020-11293, follow these mitigation strategies:

Immediate Steps to Take

Apply patches provided by Qualcomm to fix the vulnerability.
Monitor Qualcomm's security bulletins for updates and advisories.

Long-Term Security Practices

Regularly update Qualcomm Snapdragon products to the latest firmware versions.
Implement secure coding practices to prevent buffer over-read vulnerabilities.

Patching and Updates

Stay informed about security bulletins and patches released by Qualcomm for the affected products.