Mozilla Firefox ESR and 1 other: Mozilla developers reported memory safety bugs present in Firefox 92.
CVE-2021-38499 is fixed in 4 products on 2 platforms, first by firefox 93.0+build1-0ubuntu0.18.04.1, released November 2, 2021. It is not reported as exploited. Patch Radar priority: High.
Mozilla developers reported memory safety bugs present in Firefox 92. 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 < 93.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 102.0 | Mozilla Firefox ESR (en-US) 102.0 | Jun 23, 2022 |
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 93.0+build1-0ubuntu0.18.04.1 | firefox 93.0+build1-0ubuntu0.18.04.1 | Nov 2, 2021 |
| firefox · Ubuntu 20.04 LTS (focal) | 93.0+build1-0ubuntu0.20.04.1 | firefox 93.0+build1-0ubuntu0.20.04.1 | Nov 2, 2021 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 93.0+build1-0ubuntu0.18.04.1 | firefox-geckodriver 93.0+build1-0ubuntu0.18.04.1 | Nov 2, 2021 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 93.0+build1-0ubuntu0.20.04.1 | firefox-geckodriver 93.0+build1-0ubuntu0.20.04.1 | Nov 2, 2021 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 93.0+build1-0ubuntu0.18.04.1 | firefox-mozsymbols 93.0+build1-0ubuntu0.18.04.1 | Nov 2, 2021 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 93.0+build1-0ubuntu0.20.04.1 | firefox-mozsymbols 93.0+build1-0ubuntu0.20.04.1 | Nov 2, 2021 |
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