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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-6206
HistoryNov 21, 2023 - 3:15 p.m.

CVE-2023-6206

2023-11-2115:15:07
Debian Security Bug Tracker
security-tracker.debian.org
4
firefox
thunderbird
fullscreen
clickjacking
vulnerability
permission prompt
animation
security issue
unix

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

5.4 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

32.7%

The black fade animation when exiting fullscreen is roughly the length of 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

5.4 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

32.7%