CVE-2020-36158 : Security Advisory and Response

This CVE involves a vulnerability in the Linux kernel that could allow remote attackers to execute arbitrary code. The issue lies in the mwifiex_cmd_802_11_ad_hoc_start function in the drivers/net/wireless/marvell/mwifiex/join.c file.

Understanding CVE-2020-36158

This section provides insights into the nature and impact of the CVE.

What is CVE-2020-36158?

The vulnerability in mwifiex_cmd_802_11_ad_hoc_start in the Linux kernel through version 5.10.4 may permit malicious actors to execute arbitrary code by exploiting a long SSID value.

The Impact of CVE-2020-36158

The impact of this CVE is significant, with a CVSS base score of 8.8 (High severity). The attack complexity is low, but the confidentiality, integrity, and availability impacts are all high. No special privileges are required for exploitation.

Technical Details of CVE-2020-36158

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from a flaw in the mwifiex_cmd_802_11_ad_hoc_start function, allowing remote code execution through a lengthy SSID value.

Affected Systems and Versions

The issue affects the Linux kernel up to version 5.10.4.

Exploitation Mechanism

Attack Vector: ADJACENT_NETWORK
Attack Complexity: LOW
Privileges Required: NONE
User Interaction: NONE
Scope: UNCHANGED

Mitigation and Prevention

Learn how to address and prevent the CVE.

Immediate Steps to Take

Apply patches provided by the Linux kernel maintainers promptly.
Monitor official sources for security advisories related to this vulnerability.

Long-Term Security Practices

Regularly update and patch the Linux kernel to mitigate potential vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Stay informed about security updates and patches released by the Linux kernel community.