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The existence of a specifically requested local file can be found due to the double firing of the "onerror" when the "source" attribute on a "<track>" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Freebsd | — | Upgrade libxulUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade thunderbirdUpgrade firefoxUpgrade firefox-esrUpgrade linux-firefoxUpgrade seamonkey | Jan 25, 2017 | Jan 24, 2017 |
| Mfsa2017 01 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 51.0 | Jul 12, 2018 | Jun 11, 2018 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-translations-other | Feb 2, 2017 | Jan 24, 2017 |
| Ubuntu | — | Upgrade firefox | Jan 28, 2017 | Jan 24, 2017 |
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