CVE-2020-11054Low· 3.5▾ SunlitIncorrect Provision of Specified Functionality in qutebrowser
▾ Sunlit zone — Low / medium · no exploitation signal
impact 19.3 · likelihood 0.3 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
1.5%
After a certificate error was overridden by the user, qutebrowser displays the URL as yellow (colors.statusbar.url.warn.fg). However, when the affected website was subsequently loaded again, the URL was mistakenly displayed as green (colors.statusbar.url.success_https). While the user already has seen a certificate error prompt at this point (or set content.ssl_strict to false which is not recommended), this could still provide a false sense of security.
All versions of qutebrowser are believed to be affected, though versions before v0.11.x couldn't be tested.
The issue is fixed in qutebrowser v1.11.1 (pending release) and v1.12.0 (unreleased). Backported patches for older versions are available, but no further releases are planned.
If you are unable to upgrade:
content.ssl_strict to True (instead of 'ask'), preventing certificate exceptionsqutebrowser < 1.11.1Upgrade to a patched release:
qutebrowser 1.11.1Connected by shared product, vendor, weakness, or advisory.