Firefox ESR: Mozilla developers reported memory safety and script safety bugs present in Firefox 73.
CVE-2020-6815 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: High.
Mozilla developers reported memory safety and script safety bugs present in Firefox 73. Some of these bugs showed evidence of memory corruption or escalation of privilege and we presume that with enough effort some of these could have been exploited to run arbitrary code. 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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