CVE-2019-2020 : What You Need to Know

A potential vulnerability in the 'llcp_dlc_proc_rr_rnr_pdu' function in the 'llcp_dlc.cc' file of Android OS versions 7.0 to 9 allows for local information disclosure without additional privileges.

Understanding CVE-2019-2020

This CVE identifies an information disclosure vulnerability in Android OS versions 7.0 to 9.

What is CVE-2019-2020?

This vulnerability in Android OS versions 7.0 to 9 allows an attacker to read beyond the bounds of an array, potentially leading to the disclosure of local information. The exploit does not require extra execution privileges but relies on user interaction for success.

The Impact of CVE-2019-2020

The vulnerability can result in the disclosure of local information on affected Android devices running versions 7.0 to 9.

Technical Details of CVE-2019-2020

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability lies in the 'llcp_dlc_proc_rr_rnr_pdu' function in the 'llcp_dlc.cc' file, allowing for an out-of-bound read due to a missing bounds check.

Affected Systems and Versions

Product: Android
Affected Versions: Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9

Exploitation Mechanism

The exploit can read beyond array bounds, leading to local information disclosure.

Mitigation and Prevention

Protecting systems from CVE-2019-2020 is crucial for maintaining security.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Educate users about potential risks and the importance of updating their devices.

Long-Term Security Practices

Regularly update and patch all software and operating systems.
Implement security best practices to prevent and detect vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from the vendor.