Firefox ESR: When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to…
CVE-2020-6808 is fixed in 4 products on 2 platforms, first by firefox 74.0+build3-0ubuntu0.18.04.1, released March 10, 2020. It is not reported as exploited. Patch Radar priority: Routine.
When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. This vulnerability affects Firefox < 74.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 78.0esr | Mozilla Firefox ESR (en-US) 78.0esr | Jun 25, 2020 |
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox 74.0+build3-0ubuntu1 | Mar 10, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox-geckodriver 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox-geckodriver 74.0+build3-0ubuntu1 | Mar 10, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox-mozsymbols 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox-mozsymbols 74.0+build3-0ubuntu1 | Mar 10, 2020 |
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