CVE-2017-15862 : Vulnerability Insights and Analysis
Learn about CVE-2017-15862, an integer overflow vulnerability in Qualcomm Android products, potentially leading to a buffer overflow. Find out the impact, affected systems, and mitigation steps.
Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by an integer overflow vulnerability leading to a buffer overflow in wma_unified_link_radio_stats_event_handler() function.
Understanding CVE-2017-15862
This CVE involves an integer overflow vulnerability followed by a buffer overflow in Qualcomm products with Android releases from CAF using the Linux kernel.
What is CVE-2017-15862?
An integer overflow vulnerability followed by a buffer overflow may occur in wma_unified_link_radio_stats_event_handler() function due to insufficient validation of the radio channel count received from firmware.
The Impact of CVE-2017-15862
- Attackers could exploit this vulnerability to execute arbitrary code or cause a denial of service.
- Sensitive information could be accessed or modified without authorization.
Technical Details of CVE-2017-15862
This section provides more technical insights into the vulnerability.
Vulnerability Description
In wma_unified_link_radio_stats_event_handler(), the radio channel count from firmware is not properly validated, leading to an integer overflow vulnerability followed by a buffer overflow.
Affected Systems and Versions
- Products: Android for MSM, Firefox OS for MSM, QRD Android
- Vendor: Qualcomm, Inc.
- Versions: All Android releases from CAF using the Linux kernel
Exploitation Mechanism
The vulnerability arises due to insufficient validation of the radio channel count received from firmware, allowing attackers to trigger the overflow.
Mitigation and Prevention
Protecting systems from CVE-2017-15862 is crucial for maintaining security.
Immediate Steps to Take
- Apply patches provided by Qualcomm or relevant vendors promptly.
- Monitor security bulletins and updates for mitigation guidance.
Long-Term Security Practices
- Regularly update software and firmware to address security vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories and updates from Qualcomm and relevant vendors.
- Ensure timely installation of patches to mitigate the risk of exploitation.