CVE-2023-21658 : Security Advisory and Response

This CVE record pertains to a vulnerability identified as a transient Denial of Service (DOS) in WLAN Firmware while processing the received beacon or probe response frame.

Understanding CVE-2023-21658

This vulnerability, categorized as a transient DOS in WLAN Firmware, can have severe consequences if exploited by threat actors. It is crucial to understand its impact, technical details, and mitigation strategies.

What is CVE-2023-21658?

CVE-2023-21658 is a vulnerability in WLAN Firmware that could potentially lead to a Denial of Service situation. Attackers could exploit this flaw while processing certain types of frames, impacting the availability of the affected systems.

The Impact of CVE-2023-21658

The primary impact of CVE-2023-21658 is a potential disruption of the affected systems' availability due to the exploitation of the vulnerability in the WLAN Firmware. This could result in service outages or performance degradation.

Technical Details of CVE-2023-21658

Understanding the technical aspects of CVE-2023-21658 is crucial for effectively addressing and mitigating the vulnerability.

Vulnerability Description

The vulnerability involves a buffer over-read in WLAN Firmware, specifically occurring during the processing of received beacon or probe response frames. This flaw could be exploited by threat actors to trigger a transient DOS condition.

Affected Systems and Versions

The vulnerability impacts various versions of Qualcomm's Snapdragon platform, including products like AR8035, AR9380, CSR8811, FastConnect series, Immersive Home platforms, IPQ series, QCA series, QCC series, QCM series, QCS series, SD series, WCD series, WCN series, and more.

Exploitation Mechanism

The vulnerability could be exploited by sending specially crafted beacon or probe response frames to the affected systems, causing a buffer over-read condition in the WLAN Firmware and potentially leading to a Denial of Service scenario.

Mitigation and Prevention

Addressing CVE-2023-21658 requires a proactive approach towards mitigation and prevention to safeguard systems from potential exploitation.

Immediate Steps to Take

System administrators and users should apply security patches and updates provided by Qualcomm to address the vulnerability promptly.
Implement network-level protections and filtering to mitigate the risk of exploitation through malicious frames.

Long-Term Security Practices

Regularly monitor security advisories and updates from Qualcomm and other relevant sources to stay informed about potential vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address security weaknesses proactively.

Patching and Updates

It is essential to apply the recommended security patches and updates released by Qualcomm to address the vulnerability in the affected WLAN Firmware promptly.
Following a robust patch management process can help ensure that systems are protected against known vulnerabilities and potential exploits.