firefox: A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when sti...
CVE-2017-7793 is fixed in 12 products on 1 platform, first by firefox 56.0+build6-0ubuntu1, released October 1, 2017. It is not reported as exploited. Patch Radar priority: Routine.
A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 56.0+build6-0ubuntu1 | firefox 56.0+build6-0ubuntu1 | Oct 1, 2017 |
| firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) | 56.0+build6-0ubuntu1 | firefox-globalmenu 56.0+build6-0ubuntu1 | Oct 1, 2017 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 56.0+build6-0ubuntu1 | firefox-mozsymbols 56.0+build6-0ubuntu1 | Oct 1, 2017 |
| firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) | 56.0+build6-0ubuntu1 | firefox-testsuite 56.0+build6-0ubuntu1 | Oct 1, 2017 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | thunderbird 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| thunderbird-globalmenu · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | thunderbird-globalmenu 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | thunderbird-gnome-support 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | thunderbird-mozsymbols 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| thunderbird-testsuite · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | thunderbird-testsuite 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | xul-ext-calendar-timezones 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | xul-ext-gdata-provider 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:52.4.0+build1-0ubuntu2 | xul-ext-lightning 1:52.4.0+build1-0ubuntu2 | Oct 1, 2017 |
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