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Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade seamonkey-js-debuggerUpgrade seamonkey-nssUpgrade seamonkey-nsprUpgrade seamonkey-mailUpgrade seamonkey-nss-develUpgrade seamonkey-develUpgrade seamonkey-nspr-develUpgrade nspr-develUpgrade seamonkey-chatUpgrade seamonkey-dom-inspectorUpgrade seamonkeyUpgrade nsprUpgrade thunderbirdUpgrade firefox | Dec 1, 2016 | Oct 29, 2009 |
| Freebsd | — | Upgrade linux-firefoxUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade seamonkeyUpgrade firefoxUpgrade linux-thunderbird | Dec 10, 2025 | Oct 28, 2009 |
| Gentoo Linux | — | Upgrade mail-client/mozilla-thunderbird.Upgrade net-libs/xulrunner.Upgrade net-libs/xulrunner-bin.Upgrade www-client/mozilla-firefox.Upgrade mail-client/mozilla-thunderbird-bin.Upgrade www-client/mozilla-firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/seamonkey-bin.Upgrade dev-libs/nss.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade www-client/seamonkey.Upgrade www-client/icecat. | Oct 30, 2017 | Oct 29, 2009 |
| Mfsa2009 62 | — | Upgrade to Mozilla Firefox version 3.5.4Upgrade to Mozilla Firefox version 3.0.15 | Jun 14, 2012 | Oct 29, 2009 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.0.0 | Feb 3, 2012 | Oct 29, 2009 |
| Oracle_linux | — | Upgrade nspr-develUpgrade firefoxUpgrade nsprUpgrade xulrunner-devel-unstableUpgrade xulrunnerUpgrade xulrunner-devel | Oct 16, 2024 | Oct 29, 2009 |
| Suse | — | Upgrade libidlUpgrade mozilla-xulrunner190-translationsUpgrade mozilla-nss-x86Upgrade mozilla-xulrunner191Upgrade mozilla-xulrunner191-gnomevfsUpgrade mozilla-xulrunner191-32bitUpgrade gconf2-32bitUpgrade MozillaFirefox-translations-otherUpgrade mozilla-xulrunner190-x86Upgrade libfreebl3-x86Upgrade mozilla-nss-toolsUpgrade mozilla-xulrunner192-x86Upgrade MozillaFirefox-develUpgrade mozilla-xulrunner191-translationsUpgrade orbit2-x86Upgrade gconf2Upgrade libidl-x86Upgrade orbit2Upgrade mozilla-xulrunner192-32bitUpgrade mozilla-xulrunner192-gnomeUpgrade mozilla-nssUpgrade mozilla-xulrunner190-32bitUpgrade mozilla-nspr-x86Upgrade MozillaFirefox-translations-commonUpgrade mozilla-nss-32bitUpgrade mozilla-xulrunner192Upgrade mozilla-xulrunner190Upgrade mozilla-nsprUpgrade libidl-32bitUpgrade libfreebl3-32bitUpgrade MozillaFirefoxUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaFirefox-translationsUpgrade gconf2-x86Upgrade mozilla-nspr-32bitUpgrade mozilla-xulrunner190-gnomevfsUpgrade mozilla-xulrunner191-x86Upgrade orbit2-32bitUpgrade libfreebl3Upgrade mozilla-xulrunner192-translations | Feb 17, 2015 | Jun 28, 2013 |
| Ubuntu | — | Upgrade abrowserUpgrade xulrunner-1.9.1Upgrade thunderbirdUpgrade firefox-3.0Upgrade firefox-3.5Upgrade xulrunner-1.9 | Nov 8, 2024 | Oct 29, 2009 |
| Vmsa 2010 0001 1 Update For Service Console Packages Nss And Nspr | — | Upgrade VMware ESX 4.0 to build number 219382 | Sep 2, 2010 | Oct 29, 2009 |
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