CVE-2017-16645 : What You Need to Know

A vulnerability was found in the Linux kernel versions up to 4.13.11 that could allow local users to cause a denial of service or potentially have other impacts by exploiting a specific function within the kernel.

Understanding CVE-2017-16645

This CVE identifies a vulnerability in the Linux kernel that could be exploited by local users to disrupt system operations.

What is CVE-2017-16645?

The vulnerability exists within the ims_pcu_get_cdc_union_desc function in drivers/input/misc/ims-pcu.c in the Linux kernel versions up to 4.13.11. It allows local users to trigger an out-of-bounds read, leading to a system crash.

The Impact of CVE-2017-16645

Local users can cause a denial of service by triggering an out-of-bounds read and crashing the system.
There is a possibility of other unspecified impacts if a crafted USB device is used.

Technical Details of CVE-2017-16645

This section provides more technical insights into the vulnerability.

Vulnerability Description

The ims_pcu_get_cdc_union_desc function in drivers/input/misc/ims-pcu.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service or potentially have other unspecified impacts via a crafted USB device.

Affected Systems and Versions

Affected systems: Linux kernel versions up to 4.13.11
Affected component: ims_pcu_get_cdc_union_desc function

Exploitation Mechanism

Local users can exploit the vulnerability by triggering an out-of-bounds read within the ims_pcu_get_cdc_union_desc function.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate action and long-term security practices.

Immediate Steps to Take

Apply relevant patches provided by the Linux kernel maintainers.
Monitor system logs for any unusual activities that might indicate exploitation.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access.
Regularly update and patch the Linux kernel to address known vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from the Linux kernel community.
Promptly apply patches to mitigate the risk of exploitation.