The development team disabled WebGL readPixel() function that could be abused to fingerprint a Tor Browser user.
“Tor Browser 8.5.1 is the first bugfix release in the 8.5 series and aims at mostly fixing regressions and providing small improvements related to our 8.5 release.” reads the announcement from the Tor Project. “Additionally, we disable the WebGL readPixel() fingerprinting vector, realizing, though, that we need a more holistic approach when trying to deal with the fingerprinting potential WebGL comes with.”
The developers defined this fix a temporary solution that needs a more holistic approach.
Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer.
Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US.
Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines.
Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.