# CVE-2020-6824: Firefox ESR: Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the…

CVE-2020-6824 is fixed in 4 products on 2 platforms, first by firefox 75.0+build3-0ubuntu0.18.04.1, released April 6, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-6824
- Priority: Routine
- CVSS: 2.8 (Medium)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 6, 2020
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-6824

## Description

Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the Private Browsing Window but leaves Firefox open. Subsequently, if the user had opened a new Private Browsing Window, revisited the same site, and generated a new password - the generated passwords would have been identical, rather than independent. This vulnerability affects Firefox < 75.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox ESR (en-US) | 78.0esr | [Mozilla Firefox ESR (en-US) 78.0esr](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-78.0esr.md) | Jun 25, 2020 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 75.0+build3-0ubuntu0.18.04.1 | [firefox 75.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-75.0-build3-0ubuntu0.18.04.1.md) | Apr 6, 2020 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | [firefox 75.0+build3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-75.0-build3-0ubuntu1.md) | Apr 6, 2020 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 75.0+build3-0ubuntu0.18.04.1 | [firefox-geckodriver 75.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-75.0-build3-0ubuntu0.18.04.1.md) | Apr 6, 2020 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | [firefox-geckodriver 75.0+build3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-75.0-build3-0ubuntu1.md) | Apr 6, 2020 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 75.0+build3-0ubuntu0.18.04.1 | [firefox-mozsymbols 75.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-75.0-build3-0ubuntu0.18.04.1.md) | Apr 6, 2020 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | [firefox-mozsymbols 75.0+build3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-75.0-build3-0ubuntu1.md) | Apr 6, 2020 |

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