Firefox 74.0.1 fixes 2 0day update immediately

Its users θα πρέπει να ενημερώσουν άμεσα τα προγράμματα περιήγησής τους στην έκδοση 74.0.1 για να επιδιορθώσουν δύο σφάλματα που εκμεταλλεύονται σήμερα από τους hackers.

Firefox

The update is here, in the announcement of the new Firefox 74.0.1, which was officially released late last night. The new version of Firefox includes vulnerability updates CVE-2020-6819 and CVE-2020-6820,. Both exist in the way Firefox manages space his.

Τα σφάλματα είναι τα λεγόμενα τρωτά σημεία user-after-free, και επιτρέπουν στους hackers να τοποθετήσουν κώδικα μέσα στη μνήμη του Firefox και να τον τρέξουν στο περιβάλλον του προγράμματος περιήγησης. Τέτοια σφάλματα μπορούν να χρησιμοποιηθούν για την κώδικα στις συσκευές του θύματος, αν και οι επιπτώσεις αλλά και η εμβέλεια ενός τέτοιου exploit συνήθως διαφέρει από σύστημα σε σύστημα.

Details of the attacks that took place and exploited these two bugs remain unknown - a common practice between software developers and security researchers, as they focus first on developing patches and then investigating the attacks.

Mozilla gave credits to the JMP company and to security researcher Francisco Alonso for discovering the two 0days.

In a tweet he posted today, Alonso said the bugs discovered could affect other browsers, though it is not known if they have been exploited yet.

This update fixes the second 0days in Firefox this year. It was preceded by another in January, with the release of Firefox 72.0.1. This bug was used to attack users on and Japan, as part of a government-sponsored cyber espionage campaign, according to reports by Qihoo 360 and Japan CERT.

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Written by giorgos

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