Mozilla Firefox ESR and 2 others: Improper Encoding or Escaping of Output
CVE-2022-28284 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 99.0, released April 5, 2022. It is not reported as exploited. Patch Radar priority: High.
SVG's <code><use></code> element could have been used to load unexpected content that could have executed script in certain circumstances. While the specification seems to allow this, other browsers do not, and web developers relied on this property for script security so gecko's implementation was aligned with theirs. This vulnerability affects Firefox < 99.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox (en-US) | 99.0 | Mozilla Firefox (en-US) 99.0 | Apr 5, 2022 |
| 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) | 99.0+build2-0ubuntu0.18.04.2 | firefox 99.0+build2-0ubuntu0.18.04.2 | Apr 6, 2022 |
| firefox · Ubuntu 20.04 LTS (focal) | 99.0+build2-0ubuntu0.20.04.2 | firefox 99.0+build2-0ubuntu0.20.04.2 | Apr 6, 2022 |
| firefox · Ubuntu 22.04.1 LTS (jammy) | 1:1snap1-0ubuntu1 | firefox 1:1snap1-0ubuntu1 | Apr 6, 2022 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 99.0+build2-0ubuntu0.18.04.2 | firefox-geckodriver 99.0+build2-0ubuntu0.18.04.2 | Apr 6, 2022 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 99.0+build2-0ubuntu0.20.04.2 | firefox-geckodriver 99.0+build2-0ubuntu0.20.04.2 | Apr 6, 2022 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 99.0+build2-0ubuntu0.18.04.2 | firefox-mozsymbols 99.0+build2-0ubuntu0.18.04.2 | Apr 6, 2022 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 99.0+build2-0ubuntu0.20.04.2 | firefox-mozsymbols 99.0+build2-0ubuntu0.20.04.2 | Apr 6, 2022 |
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