Vulnerability CVE-2020-6809: Information
Description
When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. This vulnerability affects Firefox < 74.
Severity: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 | 74.0-alt1 | 125.0.2-alt1 | ALT-PU-2020-1486-1 | 247871 | Fixed |
| firefox | p10 | 74.0-alt1 | 118.0.2-alt0.p10.1 | ALT-PU-2020-1486-1 | 247871 | Fixed |
| firefox | p9 | 80.0.1-alt0.1.p9 | 105.0.1-alt0.c9.1 | ALT-PU-2020-3442-1 | 262506 | Fixed |
| firefox | c10f1 | 74.0-alt1 | 112.0.2-alt0.p10.1 | ALT-PU-2020-1486-1 | 247871 | Fixed |
| firefox | c9f2 | 93.0-alt0.p9.1 | 105.0.1-alt0.c9.1 | ALT-PU-2021-3368-1 | 288792 | Fixed |
| firefox-esr | sisyphus | 78.0.2-alt1 | 115.10.0-alt1 | ALT-PU-2020-2408-1 | 255107 | Fixed |
| firefox-esr | p10 | 78.0.2-alt1 | 115.10.0-alt1 | ALT-PU-2020-2408-1 | 255107 | Fixed |
| firefox-esr | p9 | 78.3.0-alt0.1.p9 | 102.11.0-alt0.c9.1 | ALT-PU-2020-2933-1 | 254920 | Fixed |
| firefox-esr | c10f1 | 78.0.2-alt1 | 115.9.1-alt0.c10.1 | ALT-PU-2020-2408-1 | 255107 | Fixed |
| firefox-esr | c9f2 | 78.7.1-alt0.1.c9 | 102.12.0-alt0.c9.1 | ALT-PU-2021-1368-1 | 264611 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1420296 |
|
| https://www.mozilla.org/security/advisories/mfsa2020-08/ |
|