Mozilla Updater in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 does not ensure exclusive access to a MAR file, which allows local users to gain privileges by creating a Trojan horse file after MAR signature verification but before MAR use.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefoxUpgrade linux-thunderbirdUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade linux-firefoxUpgrade seamonkey | Dec 10, 2025 | Aug 18, 2013 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/seamonkey-bin.Upgrade www-client/seamonkey.Upgrade mail-client/thunderbird.Upgrade www-client/firefox. | Oct 30, 2017 | Sep 18, 2013 |
| Mfsa2013 83 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 17.0.9Upgrade to Mozilla Firefox version 24.0 | Sep 25, 2013 | Sep 18, 2013 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.21.0 | Dec 8, 2014 | Sep 18, 2013 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 24.0Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird ESR version 17.0.9 | Sep 25, 2013 | Sep 18, 2013 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade sle-sdk-releaseUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations | Feb 17, 2015 | Sep 18, 2013 |
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