CVE-2019-1993: Integer Overflow in Android Bluetooth

CVE-2019-1993 presents a risk of local privilege escalation. An attacker with physical access to the device could exploit this vulnerability to gain elevated privileges, potentially bypassing security restrictions and accessing sensitive data. While user interaction is not required, the attacker needs physical access to the device. The integer overflow could lead to a buffer overflow or other memory corruption issues, allowing the attacker to execute arbitrary code with the privileges of the affected process. This could be particularly concerning for system processes or those handling sensitive information.

1. Reserved2018-12-10
2. Published2019-02-28
3. Modified2024-09-16
4. EPSS updated2026-04-02

The primary mitigation for CVE-2019-1993 is to upgrade affected Android devices to version 8.0.1 or later. If upgrading is not immediately possible, restrict physical access to the device to prevent potential exploitation. While a direct WAF or proxy rule is not applicable, consider implementing device attestation mechanisms to verify the integrity of the system. After upgrading, confirm the fix by attempting to trigger the vulnerable function and verifying that no errors or unexpected behavior occurs.