Vulnerability CVE-2021-29987: Information
Description
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| firefox | sisyphus | 91.0-alt1 | 125.0.3-alt1 | ALT-PU-2021-2488-1 | 282383 | Fixed |
| firefox | p10 | 92.0-alt1 | 118.0.2-alt0.p10.1 | ALT-PU-2021-2849-1 | 284964 | Fixed |
| firefox | p9 | 93.0-alt0.p9.1 | 105.0.1-alt0.c9.1 | ALT-PU-2022-1782-1 | 288073 | Fixed |
| firefox | c10f1 | 92.0-alt1 | 112.0.2-alt0.p10.1 | ALT-PU-2021-2849-1 | 284964 | Fixed |
| firefox | c9f2 | 93.0-alt0.p9.1 | 105.0.1-alt0.c9.1 | ALT-PU-2021-3368-1 | 288792 | Fixed |
| firefox-esr | sisyphus | 91.0.1-alt1 | 115.10.0-alt1 | ALT-PU-2021-2725-1 | 284617 | Fixed |
| firefox-esr | p10 | 91.1.0-alt1 | 115.10.0-alt1 | ALT-PU-2021-2881-1 | 284980 | Fixed |
| firefox-esr | c10f1 | 91.1.0-alt1 | 115.9.1-alt0.c10.1 | ALT-PU-2021-2881-1 | 284980 | Fixed |
| thunderbird | sisyphus | 91.0.2-alt1 | 115.9.0-alt1 | ALT-PU-2021-2636-1 | 283729 | Fixed |
| thunderbird | p10 | 91.0.3-alt1 | 115.9.0-alt1 | ALT-PU-2021-2718-1 | 283946 | Fixed |
| thunderbird | c10f1 | 91.0.3-alt1 | 115.9.0-alt0.c10.1 | ALT-PU-2021-2718-1 | 283946 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2021-33/ |
|
| https://www.mozilla.org/security/advisories/mfsa2021-36/ |
|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1716129 |
|
| GLSA-202202-03 |
|