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Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Apr 5, 2018 | Mar 21, 2018 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade firefox | Jun 19, 2018 | Mar 14, 2018 |
| Debian | — | Upgrade firefox-esr | Feb 19, 2019 | Jun 11, 2018 |
| Freebsd | — | Upgrade seamonkeyUpgrade linux-firefoxUpgrade libxulUpgrade waterfoxUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade firefoxUpgrade thunderbird | Dec 10, 2025 | Mar 13, 2018 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade www-client/firefox. | Oct 3, 2018 | Jun 11, 2018 |
| Mfsa2018 06 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 59.0 | Jul 12, 2018 | Jun 11, 2018 |
| Mfsa2018 07 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 52.7 | Mar 14, 2018 | Mar 13, 2018 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 52.7.3-0.175.3.31.0.4.0 on Solaris 11.3Upgrade mail/thunderbird to version 52.7.0-0.175.3.31.0.4.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 52.7.3-0.175.3.31.0.4.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 52.7.3-0.175.3.31.0.4.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 52.7.0-0.175.3.31.0.4.0 on Solaris 11.3 | Apr 18, 2018 | Apr 18, 2018 |
| Oracle_linux | — | Upgrade firefox | Mar 2, 2020 | Mar 14, 2018 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade firefox | May 1, 2018 | Mar 14, 2018 |
| Suse | — | Upgrade MozillaFirefox-translationsUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-devel | Jun 21, 2018 | Mar 14, 2018 |
| Ubuntu | — | Upgrade firefox | Apr 26, 2018 | Mar 14, 2018 |
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