CVE-2018-14855 : What You Need to Know
Discover the buffer overflow vulnerability in the bcmdhd4358 Wi-Fi driver on Samsung Galaxy S6 (CVE-2018-14855) allowing unauthorized memory accesses. Learn mitigation steps and long-term security practices.
The bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 has a vulnerability called buffer overflow in the function dhd_bus_flow_ring_flush_response located in the file drivers/net/wireless/bcmdhd4358/dhd_pcie.c. This vulnerability allows an attacker with code execution on the Wi-Fi chip to manipulate the device driver and perform unauthorized memory accesses. The corresponding Samsung identification for this vulnerability is SVE-2018-11785.
Understanding CVE-2018-14855
This section provides insights into the nature and impact of the CVE-2018-14855 vulnerability.
What is CVE-2018-14855?
CVE-2018-14855 is a buffer overflow vulnerability in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6. It resides in the function dhd_bus_flow_ring_flush_response, enabling an attacker with code execution on the Wi-Fi chip to exploit the device driver.
The Impact of CVE-2018-14855
The vulnerability allows unauthorized memory accesses, potentially leading to malicious manipulation of the device driver and compromising the device's security.
Technical Details of CVE-2018-14855
Explore the technical aspects of CVE-2018-14855 to understand its implications.
Vulnerability Description
The buffer overflow in dhd_bus_flow_ring_flush_response in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 permits an attacker to trigger invalid memory accesses, exploiting code execution on the Wi-Fi chip.
Affected Systems and Versions
- Affected Product: Not applicable
- Affected Vendor: Not applicable
- Affected Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by an attacker with code execution on the Wi-Fi chip to manipulate the device driver, potentially leading to unauthorized memory accesses.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2018-14855.
Immediate Steps to Take
- Implement security patches provided by Samsung promptly.
- Monitor official sources for updates and security advisories.
Long-Term Security Practices
- Regularly update device firmware to ensure the latest security enhancements.
- Employ network segmentation to limit the impact of potential attacks.
Patching and Updates
Stay informed about security patches and updates released by Samsung to address the CVE-2018-14855 vulnerability.