CVE-2018-11022 : Vulnerability Insights and Analysis
Learn about CVE-2018-11022, a vulnerability in the kernel of Amazon Kindle Fire HD(3rd) Fire OS 4.5.5.3 that allows attackers to manipulate arguments, leading to a kernel crash. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the kernel component of Amazon Kindle Fire HD(3rd) Fire OS 4.5.5.3 allows attackers to manipulate arguments in the ioctl command, leading to a kernel crash.
Understanding CVE-2018-11022
This CVE involves a vulnerability in the kernel of Amazon Kindle Fire HD(3rd) Fire OS 4.5.5.3 that can be exploited to cause a kernel crash.
What is CVE-2018-11022?
The vulnerability enables attackers to inject a manipulated argument into the ioctl command on the /dev/gcioctl device, triggering a kernel crash.
The Impact of CVE-2018-11022
The exploitation of this vulnerability can result in a kernel crash, potentially leading to denial of service or other security implications.
Technical Details of CVE-2018-11022
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability exists in the kernel/omap/drivers/misc/gcx/gcioctl/gcif.c component of Amazon Kindle Fire HD(3rd) Fire OS 4.5.5.3, allowing attackers to inject a manipulated argument into the ioctl command on the /dev/gcioctl device.
Affected Systems and Versions
- Product: Amazon Kindle Fire HD(3rd) Fire OS 4.5.5.3
- Vendor: Amazon
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting a manipulated argument into the ioctl command on the /dev/gcioctl device using the command number 3224132973, leading to a kernel crash.
Mitigation and Prevention
Protecting systems from CVE-2018-11022 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update and patch all software and firmware to mitigate potential vulnerabilities.
- Implement access controls and restrictions to limit the impact of successful attacks.
Patching and Updates
- Stay informed about security updates and advisories from the vendor.
- Regularly check for and apply patches to address known vulnerabilities.