SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-11054

In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL.

LOW 3.5EPSS 1.51%

Does this matter?

Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own.

Description

In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL. 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. This has been fixed in 1.11.1 and 1.12.0. All versions of qutebrowser are believed to be affected, though versions before v0.11.x couldn't be tested. Backported patches for older versions (greater than or equal to 1.4.0 and less than or equal to 1.10.2) are available, but no further releases are planned.

CVSS 3.1
3.5 LOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
EPSS
1.51% probability · 73th percentile
CISA KEV
Not listed
Weakness
CWE-684
Affected
qutebrowser/qutebrowser · fedoraproject/fedora
Source
security-advisories@github.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.