Vulnerability CVE-2021-23984: Information
Description
A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| firefox | sisyphus | 87.0-alt1 | 125.0.2-alt1 | ALT-PU-2021-1543-1 | 268304 | Fixed |
| firefox | p10 | 87.0-alt1 | 118.0.2-alt0.p10.1 | ALT-PU-2021-1543-1 | 268304 | Fixed |
| firefox | p9 | 93.0-alt0.p9.1 | 105.0.1-alt0.c9.1 | ALT-PU-2022-1782-1 | 288073 | Fixed |
| firefox | c10f1 | 87.0-alt1 | 112.0.2-alt0.p10.1 | ALT-PU-2021-1543-1 | 268304 | Fixed |
| firefox | c9f2 | 93.0-alt0.p9.1 | 105.0.1-alt0.c9.1 | ALT-PU-2021-3368-1 | 288792 | Fixed |
| firefox-esr | sisyphus | 78.9.0-alt1 | 115.10.0-alt1 | ALT-PU-2021-1549-1 | 268242 | Fixed |
| firefox-esr | p10 | 91.1.0-alt1 | 115.10.0-alt1 | ALT-PU-2021-2881-1 | 284980 | Fixed |
| firefox-esr | p9 | 78.9.0-alt0.1.p9 | 102.11.0-alt0.c9.1 | ALT-PU-2021-1562-1 | 268338 | Fixed |
| firefox-esr | c10f1 | 91.1.0-alt1 | 115.9.1-alt0.c10.1 | ALT-PU-2021-2881-1 | 284980 | Fixed |
| firefox-esr | c9f2 | 91.3.0-alt1.c9.1 | 102.12.0-alt0.c9.1 | ALT-PU-2021-3369-1 | 288792 | Fixed |
| thunderbird | sisyphus | 78.10.1-alt1 | 115.9.0-alt1 | ALT-PU-2021-1804-1 | 267593 | Fixed |
| thunderbird | p10 | 78.10.1-alt1 | 115.9.0-alt1 | ALT-PU-2021-1804-1 | 267593 | Fixed |
| thunderbird | p9 | 78.10.2-alt0.1.p9 | 102.11.0-alt0.c9.1 | ALT-PU-2021-1892-1 | 271859 | Fixed |
| thunderbird | c10f1 | 78.10.1-alt1 | 115.9.0-alt0.c10.1 | ALT-PU-2021-1804-1 | 267593 | Fixed |
| thunderbird | c9f2 | 78.10.2-alt0.c9.1 | 102.11.0-alt0.c9.1 | ALT-PU-2021-1886-1 | 272274 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2021-11/ |
|
| https://www.mozilla.org/security/advisories/mfsa2021-12/ |
|
| https://www.mozilla.org/security/advisories/mfsa2021-10/ |
|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 |
|