CVE-2018-1000800 : What You Need to Know

This CVE involves a vulnerability in version 1.12.0 of zephyr-rtos related to a NULL base pointer reference issue in sys_ring_buf_put() and sys_ring_buf_get(). Exploiting this flaw could lead to a CPU Page Fault with an error code of 0x00000010.

Understanding CVE-2018-1000800

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

What is CVE-2018-1000800?

The vulnerability in zephyr-rtos version 1.12.0 allows for a NULL base pointer reference in sys_ring_buf_put() and sys_ring_buf_get(), potentially resulting in a CPU Page Fault.

The Impact of CVE-2018-1000800

Exploiting this vulnerability could lead to a CPU Page Fault with an error code of 0x00000010 when a malicious application uses the vulnerable kernel APIs sys_ring_buf_get() and sys_ring_buf_put().

Technical Details of CVE-2018-1000800

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from a NULL base pointer reference issue in the functions sys_ring_buf_put() and sys_ring_buf_get() in zephyr-rtos version 1.12.0.

Affected Systems and Versions

Affected Version: 1.12.0 of zephyr-rtos

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing the vulnerable kernel APIs sys_ring_buf_get() and sys_ring_buf_put() through a malicious application.

Mitigation and Prevention

Learn how to address and prevent the CVE.

Immediate Steps to Take

Update to a patched version of zephyr-rtos to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update software and firmware to ensure the latest security patches are applied.
Implement least privilege access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security updates from zephyr-rtos and promptly apply patches to address known vulnerabilities.