Firefox ESR: Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in…
CVE-2020-6826 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: High.
Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in Firefox 74. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 75.
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) | 75.0+build3-0ubuntu0.18.04.1 | firefox 75.0+build3-0ubuntu0.18.04.1 | Apr 6, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | firefox 75.0+build3-0ubuntu1 | Apr 6, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 75.0+build3-0ubuntu0.18.04.1 | firefox-geckodriver 75.0+build3-0ubuntu0.18.04.1 | Apr 6, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | firefox-geckodriver 75.0+build3-0ubuntu1 | Apr 6, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 75.0+build3-0ubuntu0.18.04.1 | firefox-mozsymbols 75.0+build3-0ubuntu0.18.04.1 | Apr 6, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 | firefox-mozsymbols 75.0+build3-0ubuntu1 | Apr 6, 2020 |
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