Firefox ESR and 1 other: Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption…
CVE-2020-26952 is fixed in 4 products on 2 platforms, first by firefox 83.0+build2-0ubuntu0.18.04.2, released November 16, 2020. It is not reported as exploited. Patch Radar priority: High.
Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handling out-of-memory errors. This vulnerability affects Firefox < 83.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 91.0 | Mozilla Firefox ESR (en-US) 91.0 | Aug 4, 2021 |
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 83.0+build2-0ubuntu0.18.04.2 | firefox 83.0+build2-0ubuntu0.18.04.2 | Nov 16, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 83.0+build2-0ubuntu0.20.04.1 | firefox 83.0+build2-0ubuntu0.20.04.1 | Nov 16, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 83.0+build2-0ubuntu0.18.04.2 | firefox-geckodriver 83.0+build2-0ubuntu0.18.04.2 | Nov 16, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 83.0+build2-0ubuntu0.20.04.1 | firefox-geckodriver 83.0+build2-0ubuntu0.20.04.1 | Nov 16, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 83.0+build2-0ubuntu0.18.04.2 | firefox-mozsymbols 83.0+build2-0ubuntu0.18.04.2 | Nov 16, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 83.0+build2-0ubuntu0.20.04.1 | firefox-mozsymbols 83.0+build2-0ubuntu0.20.04.1 | Nov 16, 2020 |
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