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The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not prevent access to properties of a prototype for a standard class, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade xulrunner-develUpgrade xulrunner | Dec 1, 2016 | Oct 10, 2012 |
| Freebsd | — | Upgrade linux-thunderbirdUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade firefoxUpgrade libxulUpgrade seamonkeyUpgrade linux-firefox | Dec 10, 2025 | Oct 10, 2012 |
| Gentoo Linux | — | Upgrade www-client/mozilla-firefox.Upgrade dev-libs/nss.Upgrade www-client/seamonkey-bin.Upgrade mail-client/mozilla-thunderbird.Upgrade mail-client/mozilla-thunderbird-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/icecat.Upgrade www-client/mozilla-firefox-bin.Upgrade net-libs/xulrunner.Upgrade www-client/firefox.Upgrade www-client/seamonkey.Upgrade net-libs/xulrunner-bin.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin. | Oct 30, 2017 | Oct 10, 2012 |
| Mfsa2012 83 | — | Upgrade to Mozilla Firefox ESR version 10.0.8Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 16.0 | Oct 16, 2012 | Oct 10, 2012 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.13Upgrade to the latest version of Mozilla SeaMonkey | Oct 16, 2012 | Oct 10, 2012 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 16.0Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird ESR version 10.0.8 | Oct 16, 2012 | Oct 10, 2012 |
| Oracle Solaris | — | Upgrade entire/ to version 11.4-11.4.0.0.1.15.0 on Solaris 11.4 | Oct 19, 2018 | Oct 10, 2012 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade xulrunnerUpgrade xulrunner-devel | Oct 16, 2024 | Oct 10, 2012 |
| Suse | — | Upgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-develUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaFirefox-translations | Feb 17, 2015 | Jun 28, 2013 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Nov 8, 2024 | Oct 10, 2012 |
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