CVE-2023-6867

NameCVE-2023-6867
DescriptionThe timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3697-1, DSA-5581-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid126.0-1fixed
firefox-esr (PTS)buster91.12.0esr-1~deb10u1vulnerable
buster (security)115.11.0esr-1~deb10u1fixed
bullseye115.7.0esr-1~deb11u1fixed
bullseye (security)115.11.0esr-1~deb11u1fixed
bookworm115.7.0esr-1~deb12u1fixed
bookworm (security)115.11.0esr-1~deb12u1fixed
sid, trixie115.11.0esr-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)121.0-1
firefox-esrsourcebuster115.6.0esr-1~deb10u1DLA-3697-1
firefox-esrsourcebullseye115.6.0esr-1~deb11u1DSA-5581-1
firefox-esrsourcebookworm115.6.0esr-1~deb12u1DSA-5581-1
firefox-esrsource(unstable)115.6.0esr-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2023-56/#CVE-2023-6867
https://www.mozilla.org/en-US/security/advisories/mfsa2023-54/#CVE-2023-6867

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