CVE-2020-6831

Advisory

Qutebrowser 1.12.0 Windows and macOS releases ship 'Qt' 5.15, which is based on Chromium 80.0.3987.163 with security fixes up to 81.0.4044.138.
#NOTE: This vulnerability affects only users of MacOS and Windows.
https://github.com/qutebrowser/qutebrowser/commit/2a42f3a8c27aa036f4af08ef6f3108bbe80a3bcb

Affected package

Affected versions

Fixed versions

Vulnerability changelog

Removed

- `tox -e mkvenv` which was deprecated in qutebrowser v1.10.0 is now
removed. Use the `mkvenv.py` script instead.
- Support for using `config.bind(key, None)` in `config.py` to unbind a
key was deprecated in v1.8.2 and is now removed. Use
`config.unbind(key)` instead.
- `:yank markdown` was deprecated in v1.7.0 and is now removed. Use
`:yank inline [{title}]({url})` instead.

Added

- New `:debug-keytester` command, which shows a "key tester" widget.
Previously, that was only available as a separate application via `python3 -m
scripts.keytester`.
- New `:config-diff` command which opens the `qute://configdiff` page.
- New `--debug-flag log-cookies` to log cookies to the debug log.
- New `colors.contextmenu.disabled.{fg,bg}` settings to customize colors for
disabled items in the context menu.
- New line selection mode (`:toggle-selection --line`), bound to `Shift-V` in caret mode.
- New `colors.webpage.darkmode.*` settings to control Chromium's dark mode.
Note that those settings only work with QtWebEngine on Qt >= 5.14 and require
a restart of qutebrowser.

Changed

- Windows and macOS releases now ship Qt 5.15, which is based on Chromium
80.0.3987.163 with security fixes up to 81.0.4044.138.
- The `content.cookies.accept` setting now accepts URL patterns.
- Tests are now included in release tarballs. Note that only running them with
the exact dependencies listed in
`misc/requirements/requirements-tests.txt{,-raw}` is supported.
- The `:tab-focus` command now has completion for tabs in the current window.
- The `bindings.key_mappings` setting now maps `<Ctrl+I>` to the tab key by default.
- `:tab-give --private` now detaches a tab into a new private window.

Fixed

- Using `:open -s` now only rewrites `http://` in URLs to `https://`, not other
schemes like `qute://`.
- When an unhandled exception happens in certain parts of the code (outside of
the main thread), qutebrowser did crash or freeze when trying to show its
exception handler. This is now fixed.
- `:inspector` now works correctly when cookies are disabled globally.
- Added workaround for a (Gentoo?) PyQt/packaging issue related to the
`QWebEngineFindTextResult` handling added in v1.11.0.
- When entering caret selection mode (`v, v`) very early before a page is
loaded, an error is now shown instead of a crash happening.
- The workaround for session loading with Qt 5.15 now handles
`sessions.lazy_restore` so that the saved page is loaded instead of the
"stub" page with no possibility to get to the web page.
- A site specific quirk to allow typing accented characters on Google
Docs was active for docs.google.com, but not drive.google.com. It is
now applied for both subdomains.
- With older graphics hardware (OpenGL < 4.3) with Qt 5.14 on Wayland, WebGL
causes segfaults. Now qutebrowser detects that combination and suggests to
disable WebGL or use XWayland.

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6831