CVE-2023-7042 : Vulnerability Insights and Analysis

This CVE article provides insights into CVE-2023-7042, a vulnerability in the Linux kernel that could lead to a denial of service.

Understanding CVE-2023-7042

This section delves into the details of the CVE-2023-7042 vulnerability, highlighting its impact, technical details, affected systems and versions, as well as mitigation and prevention strategies.

What is CVE-2023-7042?

CVE-2023-7042 is a null pointer dereference vulnerability discovered in ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev() within the Linux kernel. The vulnerability can be exploited to trigger a denial of service attack.

The Impact of CVE-2023-7042

The impact of CVE-2023-7042 is rated as medium severity with a CVSS base score of 4.4. Although the confidentiality and integrity impacts are none, the availability impact is high. This vulnerability requires high privileges for exploitation and has a low attack complexity, posing a risk to local systems.

Technical Details of CVE-2023-7042

This section elaborates on the technical aspects of CVE-2023-7042, including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from a null pointer dereference flaw in ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev() in the Linux kernel, making it prone to a denial of service attack.

Affected Systems and Versions

Multiple Red Hat Enterprise Linux versions, including RHEL 6, RHEL 7, RHEL 8, RHEL 9, along with Fedora, are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability could be exploited by malicious actors to trigger a denial of service attack, impacting the availability of affected systems.

Mitigation and Prevention

In this section, we explore the steps to mitigate the CVE-2023-7042 vulnerability and prevent potential exploitation.

Immediate Steps to Take

It is recommended to apply available patches and updates provided by Red Hat to address the CVE-2023-7042 vulnerability promptly.

Long-Term Security Practices

Implementing strong access controls, monitoring system activity, and staying informed about security updates are essential long-term security practices to safeguard systems from such vulnerabilities.

Patching and Updates

Regularly updating the affected systems with the latest security patches from Red Hat can help mitigate the risk associated with CVE-2023-7042.

By understanding the technical details and impact of CVE-2023-7042, organizations can take necessary measures to secure their systems and prevent potential exploitation.