CVE-2021-37583 : Security Advisory and Response

MediaTek microchips, as used in NETGEAR devices and other products, mishandle IEEE 1905 protocols, leading to an out-of-bounds write vulnerability with a CVSS base score of 8.2.

Understanding CVE-2021-37583

This CVE relates to the mishandling of IEEE 1905 protocols in MediaTek microchips, impacting various chipsets and software versions.

What is CVE-2021-37583?

CVE-2021-37583 involves out-of-bounds write vulnerability in MediaTek microchips, affecting NETGEAR devices among others.

The Impact of CVE-2021-37583

This vulnerability has a base severity of HIGH, with confidentiality impact being HIGH and availability impact being LOW.

Technical Details of CVE-2021-37583

The technical details of this CVE include affected chipsets like MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915 and affected software versions 2.0.2.

Vulnerability Description

The vulnerability results from the mishandling of IEEE 1905 protocols, leading to an out-of-bounds write situation.

Affected Systems and Versions

Systems using MediaTek microchips and software version 2.0.2 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited remotely via a network connection, with low attack complexity.

Mitigation and Prevention

To address CVE-2021-37583, immediate actions, long-term security practices, and patching are essential.

Immediate Steps to Take

Immediately update affected devices with the latest patches from NETGEAR or the relevant vendors to mitigate the vulnerability.

Long-Term Security Practices

Implement network segmentation, access controls, and regular security assessments to enhance the overall security posture.

Patching and Updates

Regularly check for security advisories from NETGEAR and MediaTek to apply necessary patches and updates.