In SkSwizzler::onSetSampleX of SkSwizzler.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege in system_server with no additio

The impact of CVE-2019-1986 is remote code execution within the systemserver process. An attacker could potentially leverage this vulnerability to gain elevated privileges on the device, allowing them to install malicious applications, access sensitive data, or modify system settings. The requirement for user interaction means that the attacker needs to trick the user into performing a specific action, such as opening a malicious file or visiting a compromised website. The systemserver is a critical component of Android, so a successful exploit could have a significant impact on the device's security and stability.

1. 已保留2018-12-10
2. 发布日期2019-02-28
3. 修改日期2024-09-16
4. EPSS 更新日期2026-04-02

The primary mitigation for CVE-2019-1986 is to update Android devices to version 9.0.1 or later. If an immediate update is not possible, consider restricting user access to untrusted applications and files. Implement robust input validation and sanitization practices in applications to prevent the injection of malicious data. While a direct WAF rule is unlikely, monitoring system_server processes for unusual behavior could provide early detection. After upgrading, verify the fix by attempting to reproduce the vulnerability with known exploit vectors and confirming that the out-of-bounds write is prevented.