CVE-2018-5836 Explained : Impact and Mitigation
Learn about CVE-2018-5836 affecting Android releases from CAF using the Linux kernel by Qualcomm. Find out the impact, affected systems, exploitation risks, and mitigation steps.
Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by a vulnerability in the wma_nan_rsp_event_handler() function.
Understanding CVE-2018-5836
This CVE identifies a potential vulnerability in Android releases from CAF using the Linux kernel, impacting various Qualcomm products.
What is CVE-2018-5836?
Before the security patch level of 2018-06-05, a flaw in the wma_nan_rsp_event_handler() function could lead to an out-of-bounds access due to inadequate validation of the data_len value obtained from firmware.
The Impact of CVE-2018-5836
The vulnerability could be exploited to trigger an out-of-bounds access, potentially leading to unauthorized access or denial of service.
Technical Details of CVE-2018-5836
Android for MSM, Firefox OS for MSM, QRD Android are affected by this vulnerability.
Vulnerability Description
The issue lies in the wma_nan_rsp_event_handler() function, where the data_len value is not properly validated, posing a risk of out-of-bounds access.
Affected Systems and Versions
- All Android releases from CAF using the Linux kernel
Exploitation Mechanism
Attackers could exploit this vulnerability by manipulating the data_len value obtained from firmware to gain unauthorized access.
Mitigation and Prevention
Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2018-5836.
Immediate Steps to Take
- Apply the security patch released on or after 2018-06-05 to address the vulnerability.
- Monitor for any unusual activities that could indicate exploitation of the flaw.
Long-Term Security Practices
- Regularly update software and firmware to patch known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential breaches.
- Conduct regular security assessments and audits to identify and address security gaps.
Patching and Updates
Ensure all systems running affected Qualcomm products have the latest security patches installed to prevent exploitation of CVE-2018-5836.