firefox: Crossbeam is a set of tools for concurrent programming
CVE-2020-15254 is fixed in 3 products on 1 platform, first by firefox 82.0+build2-0ubuntu0.18.04.1, released October 21, 2020. It is not reported as exploited. Patch Radar priority: Routine.
Crossbeam is a set of tools for concurrent programming. Incrossbeam-channel before version 0.4.4, the bounded channel incorrectlyassumes that `Vec::from_iter` has allocated capacity that same as thenumber of iterator elements. `Vec::from_iter` does not actually guaranteethat and may allocate extra memory. The destructor of the `bounded` channelreconstructs `Vec` from the raw pointer based on the incorrect assumesdescribed above. This is unsound and causing deallocation with theincorrect capacity when `Vec::from_iter` has allocated different sizes withthe number of iterator elements. This has been fixed in crossbeam-channel0.4.4.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 82.0+build2-0ubuntu0.18.04.1 | firefox 82.0+build2-0ubuntu0.18.04.1 | Oct 21, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 82.0+build2-0ubuntu0.20.04.1 | firefox 82.0+build2-0ubuntu0.20.04.1 | Oct 21, 2020 |
| firefox · Ubuntu 24.10 (oracular) | 82.0.2+build1-0ubuntu1 | firefox 82.0.2+build1-0ubuntu1 | Oct 22, 2020 |
| firefox · Ubuntu 25.04 (plucky) | 82.0.2+build1-0ubuntu1 | firefox 82.0.2+build1-0ubuntu1 | Oct 22, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 82.0+build2-0ubuntu0.18.04.1 | firefox-geckodriver 82.0+build2-0ubuntu0.18.04.1 | Oct 21, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 82.0+build2-0ubuntu0.20.04.1 | firefox-geckodriver 82.0+build2-0ubuntu0.20.04.1 | Oct 21, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 82.0+build2-0ubuntu0.18.04.1 | firefox-mozsymbols 82.0+build2-0ubuntu0.18.04.1 | Oct 21, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 82.0+build2-0ubuntu0.20.04.1 | firefox-mozsymbols 82.0+build2-0ubuntu0.20.04.1 | Oct 21, 2020 |
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