CVE-2021-30301 Explained : Impact and Mitigation

This CVE-2021-30301 involves a possible denial of service vulnerability found in Snapdragon Auto, Snapdragon Industrial IOT, and Snapdragon Mobile devices manufactured by Qualcomm, Inc.

Understanding CVE-2021-30301

This vulnerability can result in a denial of service due to memory exhaustion during the processing of RRC and NAS OTA messages.

What is CVE-2021-30301?

The CVE-2021-30301 vulnerability can allow attackers to trigger a denial of service condition by causing memory exhaustion while handling certain messages in Qualcomm Snapdragon devices.

The Impact of CVE-2021-30301

The impact of this vulnerability is rated as high, with a CVSS base score of 7.5. It can lead to disruption of service availability on the affected devices without requiring any special privileges.

Technical Details of CVE-2021-30301

This section provides more insight into the vulnerability specifics.

Vulnerability Description

The vulnerability arises from uncontrolled resource consumption in the modem component of the Qualcomm Snapdragon devices.

Affected Systems and Versions

Products impacted include Snapdragon Auto, Snapdragon Industrial IOT, Snapdragon Mobile, with various versions identified as vulnerable.

Exploitation Mechanism

Attackers can exploit this flaw remotely with a low attack complexity, targeting the network without any user interaction.

Mitigation and Prevention

Mitigating actions focus on reducing the exploitability and impact of the vulnerability.

Immediate Steps to Take

Users are advised to monitor Qualcomm's security bulletin for official patches and mitigations. Implementing vendor-provided updates promptly is crucial.

Long-Term Security Practices

Maintain up-to-date software versions on affected devices and apply security best practices to minimize the risk of exploitation.

Patching and Updates

Regularly check for security updates from Qualcomm and apply patches as soon as they are available to protect against known vulnerabilities.