CVE-2023-21637 : Vulnerability Insights and Analysis

This CVE record was assigned by Qualcomm and published on July 4, 2023. The vulnerability involves memory corruption in Linux when system configuration APIs are called.

Understanding CVE-2023-21637

This section will delve into the details of CVE-2023-21637, including its description, impact, technical details, and mitigation strategies.

What is CVE-2023-21637?

The CVE-2023-21637 vulnerability pertains to memory corruption in Linux caused by calling system configuration APIs. This type of vulnerability can have severe implications for the confidentiality, integrity, and availability of affected systems.

The Impact of CVE-2023-21637

The impact of this vulnerability is rated as medium severity. It has a CVSS v3.1 base score of 6.7 with a high impact on availability, confidentiality, and integrity. The privileges required for exploitation are categorized as high, and the attack vector is through local access.

Technical Details of CVE-2023-21637

In this section, we will explore the vulnerability description, affected systems, and the exploitation mechanism associated with CVE-2023-21637.

Vulnerability Description

The vulnerability involves memory corruption in Linux resulting from the improper handling of operations within the bounds of a memory buffer when calling system configuration APIs.

Affected Systems and Versions

The CVE-2023-21637 impacts various Qualcomm Snapdragon products, including but not limited to FastConnect, Snapdragon Mobile, and Snapdragon Wearables. Specific versions such as AQT1000, FastConnect 6200, and Snapdragon 855 are among the affected products.

Exploitation Mechanism

The exploitation of this vulnerability occurs at a low attack complexity through local access. It does not require user interaction, and the privileges required for exploitation are categorized as high.

Mitigation and Prevention

To address CVE-2023-21637 and protect systems from potential exploitation, certain immediate steps can be taken, in addition to implementing long-term security practices and applying necessary patches and updates.

Immediate Steps to Take

It is crucial to monitor security bulletins for updates from Qualcomm regarding this vulnerability. In the meantime, restricting access to potentially vulnerable system components can help mitigate the risk.

Long-Term Security Practices

Enhancing overall system security through regular security assessments, threat monitoring, and timely system updates can fortify defenses against potential vulnerabilities like CVE-2023-21637.

Patching and Updates

Staying informed about security advisories and promptly applying patches and updates provided by Qualcomm is essential to remediate the CVE-2023-21637 vulnerability and bolster system security.