CVE-2020-0371 in Android
Summary
by MITRE • 10/14/2020
There is a possible out of bounds read due to a missing bounds check.Product: AndroidVersions: Android SoCAndroid ID: A-163008256
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Analysis
by VulDB Data Team • 11/19/2020
The vulnerability identified as CVE-2020-0371 represents a critical out-of-bounds read flaw affecting Android-based systems, specifically targeting Android SoC implementations. This issue stems from a fundamental missing bounds check within the system's memory management operations, creating a potential security risk that could be exploited by malicious actors. The vulnerability manifests in the Android operating system's handling of memory access patterns, where insufficient validation allows for unauthorized data reading beyond allocated memory boundaries. This type of flaw falls under the category of memory safety issues that have been extensively documented in cybersecurity literature and represents a significant concern for mobile device security.
The technical implementation of this vulnerability occurs within the Android SoC's memory management subsystem where proper bounds checking mechanisms are absent or inadequately implemented. When the system processes certain memory operations, it fails to validate whether data access attempts remain within legitimate memory boundaries, allowing for potential information disclosure or system instability. This missing validation creates an opportunity for attackers to read sensitive data from adjacent memory locations that should normally be protected. The flaw operates at a low-level system interface where memory management routines interact with hardware components, making it particularly dangerous as it can potentially expose confidential information stored in memory regions beyond the intended access scope.
From an operational perspective, this vulnerability presents substantial risks to Android device security and user privacy. The out-of-bounds read condition could potentially allow attackers to extract sensitive information such as cryptographic keys, personal data, or system credentials from memory locations that should remain protected. The impact extends beyond simple data exposure, as this type of vulnerability could serve as a stepping stone for more sophisticated attacks, potentially enabling privilege escalation or system compromise. Security researchers have noted that such memory safety issues often provide attackers with information that can be leveraged to craft more targeted exploits, making CVE-2020-0371 particularly concerning for organizations relying on Android-based devices for sensitive operations.
Mitigation strategies for CVE-2020-0371 should focus on implementing comprehensive bounds checking mechanisms throughout the Android SoC's memory management stack. System administrators and device manufacturers should prioritize applying official security patches released by Google and chipset vendors to address the underlying memory validation issues. Additionally, implementing runtime memory protection mechanisms such as stack canaries, address space layout randomization, and memory integrity checking can help reduce the exploitability of this vulnerability. The remediation process should also include comprehensive security testing of memory management components and regular vulnerability assessments to identify similar issues that may exist in the system's codebase. Organizations should consider implementing network monitoring solutions to detect potential exploitation attempts and establish incident response procedures specifically designed to address memory safety vulnerabilities. This vulnerability aligns with CWE-129, which addresses improper bounds checking, and represents a clear example of how insufficient input validation can lead to critical security exposures. The ATT&CK framework categorizes this type of vulnerability under privilege escalation and information gathering techniques, highlighting its potential for enabling more sophisticated attack vectors.