Firefox users should update their programs περιήγησής τους στην έκδοση 74.0.1 για να επιδιορθώσουν δύο errors which are exploited today by hackers.
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 its memory space.
Errors are so-called vulnerable 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 εκτέλεση 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 JMP Security and the researcher security Francisco Alonso for the discovery of 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 in China and Japan as part of a government-sponsored campaign aimed at espionage in cyberspace, according to reports by Qihoo 360 and Japan CERT.
