Firefox “Lambda Replace Heap Memory” Security Flaw Reveals Sensitive User Information

The Internet Patrol default featured image
Share the knowledge

A security flaw known as the “JavaScript Lambda Replace Heap Memory Disclosure Vulnerability” has been found in the popular Firefox web browser. Firefox is an open source web browser which is available for Windows, OS X, and Linux, and which has experienced significant adoption in the past 18 months.

The new security flaw, which compromises the user’s “heap memory”, was discovered and announced by security company Secunia. While not exploitable by phishers or hackers seeking to gain access to the user’s computer, it can expose sensitive information both received from and entered in at websites which the user has visited.

Explained Thomas Kristensen, CTO of Secunia, “Unlike other browser flaws, this one is not subject to phishing or access to the system. But it can expose sensitive information from other websites you visited and the information you entered there.”

The Mozilla Foundation, which created Firefox, is working on a patch. In the meantime, Secunia has created a test which users can use to determine whether their system is at risk for exposure through the flaw. If so, Secunia recommends disabling JavaScript support on the user’s system until the Mozilla Foundation releases a patch.

Get New Internet Patrol Articles by Email!

The Internet Patrol is completely free, and reader-supported. Your tips via CashApp, Venmo, or Paypal are appreciated! Receipts will come from ISIPP.

CashApp us Square Cash app link

Venmo us Venmo link

Paypal us Paypal link

 


Share the knowledge

One thought on “Firefox “Lambda Replace Heap Memory” Security Flaw Reveals Sensitive User Information

Leave a Reply

Your email address will not be published. Required fields are marked *

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.