CVE-2021-30355 : What You Need to Know

Amazon Kindle e-reader prior to and including version 5.13.4 has a vulnerability that allows the framework user to elevate privileges to root. Learn about the impact, technical details, and mitigation steps for CVE-2021-30355.

Understanding CVE-2021-30355

This section dives into the details of the CVE-2021-30355 vulnerability affecting Amazon Kindle e-readers.

What is CVE-2021-30355?

CVE-2021-30355 refers to a privilege escalation vulnerability in Amazon Kindle e-reader versions up to and including 5.13.4. This flaw allows the framework user to gain root privileges, potentially leading to unauthorized access and control.

The Impact of CVE-2021-30355

The vulnerability in Amazon Kindle e-reader can be exploited by threat actors to escalate their privileges from a framework user to root, enabling them to execute malicious activities and compromise the device's security and data.

Technical Details of CVE-2021-30355

Explore the specific technical aspects of the CVE-2021-30355 vulnerability below.

Vulnerability Description

Amazon Kindle e-reader versions 5.13.4 and below lack proper privilege management, which can be abused to escalate privileges to root level, granting unauthorized access.

Affected Systems and Versions

All versions of Amazon Kindle e-reader prior to and including 5.13.4 are vulnerable to CVE-2021-30355, leaving them exposed to potential privilege escalation attacks.

Exploitation Mechanism

The vulnerability arises from the improper handling of privileges within the Amazon Kindle e-reader, allowing a user with framework access to elevate their permissions to root.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks associated with CVE-2021-30355 and protect your Amazon Kindle e-reader from potential exploitation.

Immediate Steps to Take

Users are advised to update their Amazon Kindle e-reader to a version beyond 5.13.4 to fix the vulnerability and prevent privilege escalation attacks.

Long-Term Security Practices

Maintain a regular update schedule for your e-reader and follow security best practices to reduce the likelihood of future vulnerabilities being exploited.

Patching and Updates

Stay informed about security patches released by Amazon for your Kindle e-reader and apply them promptly to address known vulnerabilities and enhance device security.