CVE-2022-20149 in Android
Summary
by MITRE • 06/15/2022
Product: AndroidVersions: Android kernelAndroid ID: A-211685939References: N/A
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Analysis
by VulDB Data Team • 06/15/2022
The vulnerability identified as CVE-2022-20149 represents a critical security flaw within the Android kernel that affects devices running Android versions prior to the security patch release. This issue resides in the kernel's memory management subsystem and specifically impacts how the system handles certain memory allocation operations. The vulnerability was tracked under Android ID A-211685939 and represents a significant concern for mobile device security given the kernel's fundamental role in system operations and privilege management.
The technical flaw manifests in improper handling of memory regions during kernel operations, creating potential for privilege escalation attacks. Attackers can exploit this weakness to gain elevated privileges within the kernel space, potentially allowing them to execute arbitrary code with the highest system permissions. This vulnerability operates at the core level of the operating system where memory management controls are implemented, making it particularly dangerous as it can bypass standard user-space security controls and protections. The flaw likely involves inadequate bounds checking or improper memory deallocation procedures that could be manipulated through crafted kernel-level operations or specific memory access patterns.
The operational impact of CVE-2022-20149 extends beyond simple privilege escalation to encompass potential system compromise and data exposure risks. Devices affected by this vulnerability could be exploited to gain complete administrative control over the device, enabling attackers to access sensitive user data, modify system files, install malicious applications, and potentially establish persistent backdoors. The attack surface is broad given that kernel-level vulnerabilities affect all applications and services running on the device, making this a particularly severe threat. This vulnerability aligns with CWE-122 (Heap Overflow) and CWE-787 (Out-of-bounds Write) categories, representing memory corruption issues that can lead to arbitrary code execution in kernel space. The exploitation of such vulnerabilities typically maps to ATT&CK technique T1068 (Local Privilege Escalation) and T1543 (Create or Modify System Process) within the adversary tactics and techniques framework.
Mitigation strategies for CVE-2022-20149 primarily involve applying the latest security patches released by Google and device manufacturers. Organizations should prioritize immediate deployment of the Android security updates that address this kernel vulnerability. Device administrators should also implement additional monitoring measures to detect suspicious kernel-level activities and ensure that all devices in their inventory receive timely security updates. The vulnerability demonstrates the critical importance of maintaining up-to-date kernel versions and implementing robust patch management processes. System administrators should consider implementing device lockdown procedures and restricting kernel-level access to authorized personnel only. Regular security audits and vulnerability assessments should include kernel-level checks to identify and remediate similar issues before they can be exploited by malicious actors. The vulnerability highlights the necessity of continuous security monitoring and rapid response capabilities to address kernel-level threats that could compromise entire device ecosystems.