CVE-2017-0819 in Android
Summary
by MITRE
A vulnerability in the Android media framework (n/a). Product: Android. Versions: 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-63045918.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/15/2021
The vulnerability identified as CVE-2017-0819 resides within the Android media framework, specifically affecting Android versions 7.0, 7.1.1, 7.1.2, and 8.0. This issue represents a critical security flaw that demonstrates the complex interplay between multimedia processing components and system security boundaries. The vulnerability manifests in how the media framework handles certain input data streams, creating potential pathways for unauthorized code execution or system compromise. Such flaws are particularly concerning in mobile operating systems where multimedia processing is integral to user experience and device functionality. The Android media framework serves as a central component for handling audio and video content, making it a prime target for attackers seeking to exploit system vulnerabilities. This particular weakness highlights the challenges in securing multimedia processing pipelines within mobile operating systems where diverse codecs and processing engines must interoperate seamlessly while maintaining security boundaries.
The technical nature of this vulnerability involves improper input validation within the media framework's handling of multimedia data structures. Attackers can potentially craft malicious media files or streams that trigger buffer overflows or memory corruption issues when processed by the framework. The flaw likely stems from insufficient bounds checking or improper memory management when parsing specific multimedia formats, particularly those involving complex codecs or container formats. This type of vulnerability falls under the CWE-129 category of Improper Input Validation, where the system fails to properly validate or sanitize input data before processing. The vulnerability operates at a low level within the Android system architecture, potentially allowing attackers to escalate privileges or execute arbitrary code with the privileges of the media framework process. The attack surface is expanded by the framework's integration with various system components and its ability to process media content from multiple sources including network streams, local files, and application data.
The operational impact of CVE-2017-0819 extends beyond simple exploitation scenarios to encompass broader security implications for Android devices. Devices running the affected Android versions remain vulnerable to remote code execution attacks when processing malicious media content, potentially compromising user data and device integrity. This vulnerability affects the fundamental security model of Android by creating potential attack vectors that bypass traditional application sandboxing mechanisms. The impact is particularly severe given that media processing occurs frequently in mobile environments where users encounter multimedia content from various sources. Security researchers have noted that such vulnerabilities in system-level frameworks can enable sophisticated attacks including persistent backdoors or complete system compromise. The vulnerability's presence in multiple Android versions indicates a widespread exposure that required coordinated patching efforts across the Android ecosystem. Organizations and users face increased risk of data breaches, privacy violations, and potential surveillance activities when devices remain unpatched.
Mitigation strategies for CVE-2017-0819 focus primarily on timely patch deployment and system updates as recommended by Google and device manufacturers. The most effective approach involves applying the security patches released by Google as part of their regular security updates, which address the underlying memory handling and input validation issues. System administrators should prioritize updating affected devices to newer Android versions where the vulnerability has been resolved, particularly moving away from the vulnerable 7.x and 8.0 versions. Network monitoring solutions can help detect potential exploitation attempts by monitoring for unusual media processing activities or malformed content requests. Device manufacturers should implement additional runtime protections including memory corruption detection mechanisms and enhanced input sanitization routines. Security professionals should also consider implementing application whitelisting policies that restrict media processing to trusted applications and content sources. The vulnerability underscores the importance of maintaining up-to-date security practices and highlights the need for continuous security monitoring in mobile environments. Organizations should conduct vulnerability assessments to identify devices running affected Android versions and establish remediation timelines. The ATT&CK framework categorizes this type of vulnerability under privilege escalation and execution techniques, emphasizing the need for layered defense strategies that protect against both exploitation and post-compromise activities.