Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.
CVSS Details
- CVSS 3.1 Base Score: 4.3
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade firefox | Aug 6, 2016 | Aug 3, 2016 |
| Debian | — | Upgrade firefox-esr | Aug 6, 2016 | Aug 3, 2016 |
| Freebsd | — | Upgrade firefox-esrUpgrade linux-seamonkeyUpgrade thunderbirdUpgrade firefoxUpgrade seamonkeyUpgrade linux-firefoxUpgrade libxulUpgrade linux-thunderbird | Dec 10, 2025 | Sep 7, 2016 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird. | Oct 30, 2017 | Aug 4, 2016 |
| Mfsa2016 63 | — | Upgrade to Mozilla Firefox version 48.0Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 45.3 | Aug 3, 2016 | Aug 2, 2016 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 45.4.0-0.175.3.14.0.4.0 on Solaris 11.3Upgrade developer/yasm to version 1.3.0-0.175.3.14.0.2.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 45.3.0-0.175.3.14.0.4.0 on Solaris 11.3Upgrade web/browser/firefox to version 45.4.0-0.175.3.14.0.4.0 on Solaris 11.3Upgrade mail/thunderbird to version 45.3.0-0.175.3.14.0.4.0 on Solaris 11.3 | May 29, 2017 | Aug 4, 2016 |
| Oracle_linux | — | Upgrade firefox | Aug 6, 2016 | Aug 2, 2016 |
| Redhat_linux | — | Upgrade firefoxUpgrade firefox-debuginfo | Aug 3, 2016 | Aug 3, 2016 |
| Suse | — | Upgrade mozilla-nssUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade mozilla-nspr-32bitUpgrade MozillaThunderbird-develUpgrade mozilla-nspr-develUpgrade mozilla-nsprUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaFirefox-translations-commonUpgrade libfreebl3Upgrade MozillaFirefox-develUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaFirefox-translationsUpgrade firefox-fontconfigUpgrade MozillaThunderbird-translations-commonUpgrade mozilla-nss-32bitUpgrade MozillaFirefoxUpgrade libfreebl3-32bitUpgrade mozilla-nss-develUpgrade MozillaFirefox-translations-otherUpgrade mozilla-nss-tools | Aug 26, 2016 | Aug 4, 2016 |
| Ubuntu | — | Upgrade firefox | Aug 6, 2016 | Aug 4, 2016 |
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