CVE-2021-35134 : Exploit Details and Defense Strategies
Understand the impact of CVE-2021-35134, a Qualcomm vulnerability leading to memory corruption during boot. Learn about affected systems, exploitation details, and mitigation strategies.
This vulnerability in Qualcomm products can lead to memory corruption due to an incorrect calculation of buffer size during boot. Learn about the impact, technical details, and mitigation strategies related to CVE-2021-35134.
Understanding CVE-2021-35134
CVE-2021-35134 affects various Qualcomm products due to inadequate validation of ELF headers, leading to memory corruption during boot.
What is CVE-2021-35134?
The vulnerability stems from an incorrect calculation of buffer size during boot, which can cause memory corruption in Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile products.
The Impact of CVE-2021-35134
The vulnerability can have a high impact on confidentiality, integrity, and availability of affected systems, with a CVSS base score of 8.4 (High severity).
Technical Details of CVE-2021-35134
The vulnerability arises from insufficient validation of ELF headers, resulting in an incorrect calculation of buffer size during boot.
Vulnerability Description
The flaw can lead to memory corruption in Qualcomm products, affecting various versions across Snapdragon Connectivity, Industrial IOT, and Mobile platforms.
Affected Systems and Versions
Products impacted include QCA6391, QCM6490, QCS6490, SD 8 Gen1 5G, SD778G, SD780G, SD888, and more listed in the vendor advisory.
Exploitation Mechanism
The vulnerability can be exploited locally, without the need for any special privileges, which can lead to significant memory corruption.
Mitigation and Prevention
It is crucial to take immediate steps to address CVE-2021-35134 and implement long-term security measures to prevent similar vulnerabilities in the future.
Immediate Steps to Take
Ensure to apply security patches and updates provided by Qualcomm to mitigate the vulnerability and protect your systems.
Long-Term Security Practices
Adopt best security practices, such as regular vulnerability assessments, security monitoring, and maintaining up-to-date software versions to enhance overall system security.
Patching and Updates
Regularly check for security bulletins and updates from Qualcomm to stay informed about patches and fixes for CVE-2021-35134.