CVE-2020-11294 : Exploit Details and Defense Strategies

Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, and Snapdragon Wearables by Qualcomm, Inc. are affected by an out-of-bound write vulnerability in the logger due to unvalidated prefix size.

Understanding CVE-2020-11294

This CVE involves an improper validation of array index in the radio interface layer, leading to potential security risks.

What is CVE-2020-11294?

The vulnerability allows an attacker to perform out-of-bound write operations in the logger by manipulating the prefix size without proper validation.

The Impact of CVE-2020-11294

The CVSS base score for this vulnerability is 5.9, indicating a medium severity issue with low confidentiality, integrity, and availability impacts. The attack complexity is low, and no special privileges are required for exploitation.

Technical Details of CVE-2020-11294

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from the lack of validation of the prefix size before it is added to the logging string, enabling out-of-bound write operations.

Affected Systems and Versions

The following systems and versions are affected:

AR8035
PM215
PM3003A
PM6125
PM6150
PM6150A
... (truncated)

Exploitation Mechanism

Attackers can exploit this vulnerability locally without the need for user interaction, making it a potential target for malicious activities.

Mitigation and Prevention

Protecting systems from CVE-2020-11294 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm, Inc.
Monitor system logs for any suspicious activities related to out-of-bound writes.

Long-Term Security Practices

Implement secure coding practices to validate all inputs and parameters.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Regularly check for security bulletins and updates from Qualcomm, Inc. to address CVE-2020-11294 and other potential vulnerabilities.