CVE-2019-17010 : What You Need to Know

A vulnerability affecting Thunderbird, Firefox ESR, and Firefox versions before specific releases could lead to a crash and potential exploitation.

Understanding CVE-2019-17010

This CVE involves a race condition during device orientation checks that may result in a use-after-free scenario.

What is CVE-2019-17010?

When the Resist Fingerprinting preference is active during device orientation checks, a race condition can occur, leading to a use-after-free situation that might cause a crash.

The Impact of CVE-2019-17010

The vulnerability could potentially result in a crash that could be exploited by malicious actors targeting Thunderbird versions prior to 68.3, Firefox ESR versions prior to 68.3, and Firefox versions prior to 71.

Technical Details of CVE-2019-17010

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from a race condition triggered by the Resist Fingerprinting preference during device orientation checks, potentially causing a use-after-free scenario.

Affected Systems and Versions

Thunderbird versions before 68.3
Firefox ESR versions before 68.3
Firefox versions before 71

Exploitation Mechanism

The vulnerability could be exploited by malicious actors leveraging the race condition during device orientation checks.

Mitigation and Prevention

Protecting systems from CVE-2019-17010 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Thunderbird to version 68.3 or newer
Update Firefox ESR to version 68.3 or newer
Update Firefox to version 71 or newer

Long-Term Security Practices

Regularly update software to the latest versions
Enable security features to prevent exploitation

Patching and Updates

Ensure timely installation of security patches and updates provided by Mozilla and other relevant vendors.