Several days ago the release of the new update version of Tails 4.19 was announced in which the system browser update that is Tor Browser has been made, as well as the NoScript update and more. It is also mentioned that this version includes important security updates for Firefox.
For those who are unfamiliar with Tails, you should know that this is a distribution that is based on the base of the Debian 10 package y designed to provide anonymous access to the network, in order to preserve the privacy and anonymity of the user on the network.
Anonymous output from Tails is provided by Tor In all connections, since the traffic through the Tor network, they are blocked by default with a packet filter, with which the user does not leave a trace on the network unless they want otherwise. Encryption is used to store user data in save user data mode between startups, in addition to presenting a series of preconfigured applications designed for the security and anonymity of the user, such as a web browser, the mail client, an instant message client among others.
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Main new features of Tails 4.19
This new version of the distribution it is merely an update, but also some bug fixes have been implemented and also some changes and it is that in the new version, TLS certificate binding was suspended to the Tails site when automatic updates are performed (due to such linking, the automatic update delivery has already been violated twice, the remaining update integrity check using the OpenPGP key is sufficient).
As for the change that was made, it is that added visual prompt to enter admin password in sudo (for example, "password [sudo] for user: ********").
On the part of the updates, we can find that Tor Browser has been updated to version 10.0.17 and Thunderbird to version 78.10.0.
For the part of the new version that was integrated from Tor 10.0.17, this version is synchronized with the base code of Firefox 78.11.0 ESR in which 6 vulnerabilities have been corrected, of which the vulnerability "CVE-2021-29967" considered the most dangerous of the 6, it has been removed from the current version of Firefox ESR.
According to Mozilla's description, these are memory security bugs, some of which have the potential for memory bugs. These, in turn, could be exploited "with enough effort" to execute arbitrary (harmful) code.
Also in Tor Browser 10.0.17 we can find that the updated versions of NoScript 11.2.8, HTTPS Everywhere 2021.4.15 and Tor 0.4.5.8 are included.
Finally, if you want to know more about it of this new version of the distribution, you can check the details in the announcement. The link is this.
Download Tails 4.19
Si you want to try or install this new version of this Linux distribution on your computer, You can obtain the image of the system which is already available from its official website in its download section, link is this.
The image obtained from the download section is a 1 GB ISO image capable of working in live mode.
It is also important to take into account that this new version of Tails 4.13, like most of its predecessors, also corrects some security holes, so its developers strongly recommend that you update to this new version if you are in a previous one. .
How to update to the new version of Tails 4.19?
For those users who have an older version of Tails installed and want to upgrade to this new version. They should know that the direct upgrade to Tails 4.19 can be done directly from Tails 4.14 or higher.
For this they can make use of their USB device that they used to install Tails, they can consult the information to carry this movement on their computer In the following link.