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Fedora 42: 2025-17f64d2c4d moderate: IceCat JavaScript Fix

fedora
Calendar Grey April 29, 2025
Dist Fedora Esm H88
IceCat 115.22.0-2.rh1 for Fedora 42 enhances user protection against vulnerabilities in JavaScript through added security functionalities.
Rebuild with pregenerated cbindgen

Summary

GNU IceCat is the GNU version of the Firefox ESR browser.

Extensions included to this version of IceCat:

* LibreJS

GNU LibreJS aims to address the JavaScript problem described in the article

"The JavaScript Trap" of Richard Stallman.

* JShelter: Mitigates potential threats from JavaScript, including fingerprinting,

tracking, and data collection. Slightly modifies the results of API calls,

differently on different domains, so that the cross-site fingerprint is not

stable. Applies security counter-measures that are likely not to break web pages.

Allows fine-grained control over the restrictions and counter-measures applied

to each domain.

* A set of companion extensions for LibreJS by Nathan Nichols

are pre-installed, and provide workarounds to use some services at USPS,

RSF.org, SumOfUs.org, pay.gov, McDonalds, goteo.org and Google Docs

without using nonfree JavaScript.

* A series of configuration changes and tweaks were applied to ensure that

IceCat does not initiate network connections that the user has not explicitly

requested. This implies not downloading feeds, updates, blacklists or any

other similar data needed during startup.

Update Information:

Rebuild with pregenerated cbindgen

Topics%20covered

Topics Covered

security advisory update Fedora threat mitigation JavaScript icecat

Change Log

* Sun Apr 20 2025 Antonio Trande - 2:115.22.0-2.rh1 - Upload regenerated built-in cbindgen

References


[ 1 ] Bug #2357926 - CVE-2025-3416 icecat: rust-openssl Use-After-Free in `Md::fetch` and `Cipher::fetch` [fedora-40] https://bugzilla.redhat.com/show_bug.cgi?id=2357926 [ 2 ] Bug #2357938 - CVE-2025-3416 icecat: rust-openssl Use-After-Free in `Md::fetch` and `Cipher::fetch` [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2357938

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-17f64d2c4d' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Name: icecat
Product: Fedora 42
Version: 115.22.0
Release: 2.rh1.fc42
URL:
Summary: GNU version of Firefox browser

Topics%20covered

Topics Covered

security advisory update Fedora threat mitigation JavaScript icecat

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