CVE-2023-33110 : What You Need to Know

A detailed article outlining the impact, technical details, and mitigation strategies for CVE-2023-33110 affecting Qualcomm products.

Understanding CVE-2023-33110

This section provides insights into the vulnerability, impacted systems, and potential exploitation methods that can lead to memory corruption.

What is CVE-2023-33110?

The CVE-2023-33110 vulnerability involves the session index variable in PCM host voice audio driver initialized before PCM open. This can result in a race condition between event callback, PCM close, and reset actions, leading to memory corruption.

The Impact of CVE-2023-33110

The vulnerability carries a high severity rating with a CVSSv3.1 base score of 7.8. It poses risks to confidentiality, integrity, and availability, primarily affecting Qualcomm products utilizing voice audio drivers.

Technical Details of CVE-2023-33110

This section delves into the specific vulnerability description, affected systems, and the exploitation mechanism to provide a comprehensive understanding.

Vulnerability Description

The session index variable initialization before PCM open, accessed during event callbacks, and reset during PCM close can trigger a race condition, potentially leading to memory corruption.

Affected Systems and Versions

The CVE-2023-33110 impacts a wide range of Qualcomm products, including Snapdragon processors, LTE modems, platforms, and wearables, among others. Notable affected versions include 315 5G IoT Modem, Snapdragon 865 5G, and Snapdragon 888 5G Mobile Platform.

Exploitation Mechanism

By exploiting the race condition between event callback, PCM close, and session index reset, threat actors can manipulate the memory state, potentially executing arbitrary code or disrupting system functionality.

Mitigation and Prevention

This section focuses on immediate steps to mitigate risks, long-term security practices, and the crucial role of patching and updates in safeguarding Qualcomm devices.

Immediate Steps to Take

Users are advised to apply vendor-recommended security patches promptly, monitor for abnormal system behavior, and restrict network access to vulnerable devices to mitigate potential exploitation.

Long-Term Security Practices

Incorporating secure coding practices, conducting regular security audits, and maintaining updated firmware can enhance the overall security posture of Qualcomm products and mitigate similar vulnerabilities in the future.

Patching and Updates

Qualcomm has released security bulletins and patches addressing CVE-2023-33110. Users are urged to download and apply the latest updates from official sources to safeguard their devices against known vulnerabilities.