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The XBL.__proto__.toString implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 makes it easier for remote attackers to bypass the ASLR protection mechanism by calling the toString function of an XBL object.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade xulrunnerUpgrade xulrunner-devel | Dec 1, 2016 | Jan 13, 2013 |
| Freebsd | — | Upgrade seamonkeyUpgrade linux-seamonkeyUpgrade libxulUpgrade linux-firefoxUpgrade ca_root_nssUpgrade thunderbirdUpgrade firefoxUpgrade linux-thunderbird | Dec 10, 2025 | Jan 9, 2013 |
| Gentoo Linux | — | Upgrade www-client/seamonkey-bin.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/seamonkey.Upgrade mail-client/thunderbird.Upgrade www-client/firefox. | Oct 30, 2017 | Jan 13, 2013 |
| Mfsa2013 11 | — | Upgrade to Mozilla Firefox ESR version 10.0.12Upgrade to Mozilla Firefox ESR version 17.0.2Upgrade to Mozilla Firefox version 18.0Upgrade to the latest version of Mozilla Firefox | Jan 14, 2013 | Jan 13, 2013 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.15Upgrade to the latest version of Mozilla SeaMonkey | Jan 10, 2013 | Jan 8, 2013 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird ESR version 17.0.2Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 17.0.2Upgrade to Mozilla Thunderbird ESR version 10.0.12 | Jan 10, 2013 | Jan 8, 2013 |
| Oracle_linux | — | Upgrade xulrunnerUpgrade thunderbirdUpgrade firefoxUpgrade xulrunner-devel | Oct 16, 2024 | Jan 13, 2013 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jan 8, 2013 |
| Suse | — | Upgrade libfreebl3-debuginfoUpgrade libfreebl3-debuginfo-x86Upgrade MozillaThunderbird-develUpgrade mozilla-js-debuginfoUpgrade mozilla-nspr-debuginfo-32bitUpgrade mozilla-nss-debuginfoUpgrade libsoftokn3-debuginfo-x86Upgrade seamonkeyUpgrade mozilla-nss-debuginfo-x86Upgrade mozilla-nss-32bitUpgrade mozilla-nss-toolsUpgrade mozilla-nss-certs-x86Upgrade MozillaThunderbird-devel-debuginfoUpgrade mozilla-js-32bitUpgrade mozilla-nspr-x86Upgrade libsoftokn3Upgrade xulrunner-debuginfo-x86Upgrade mozilla-nss-develUpgrade MozillaThunderbird-debugsourceUpgrade seamonkey-ircUpgrade mozilla-nss-debugsourceUpgrade mozilla-nss-tools-debuginfoUpgrade seamonkey-translations-otherUpgrade mozilla-nss-certs-32bitUpgrade seamonkey-translations-commonUpgrade enigmailUpgrade mozilla-nss-certs-debuginfoUpgrade MozillaFirefoxUpgrade mozilla-nss-sysinit-debuginfo-x86Upgrade libsoftokn3-32bitUpgrade mozilla-nss-sysinit-x86Upgrade libfreebl3-32bitUpgrade xulrunnerUpgrade MozillaFirefox-translations-otherUpgrade xulrunner-debuginfoUpgrade xulrunner-develUpgrade xulrunner-debuginfo-32bitUpgrade firefox3-gtk2-32bitUpgrade MozillaThunderbird-translations-otherUpgrade mozilla-nss-x86Upgrade mozilla-nss-certsUpgrade firefox3-cairoUpgrade mozilla-js-debuginfo-32bitUpgrade mozilla-nss-sysinit-debuginfoUpgrade MozillaThunderbird-translations-commonUpgrade mozilla-js-x86Upgrade libfreebl3-x86Upgrade mozilla-jsUpgrade MozillaFirefox-debugsourceUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nss-sysinit-debuginfo-32bitUpgrade xulrunner-x86Upgrade mozilla-nspr-debuginfo-x86Upgrade mozilla-nspr-32bitUpgrade libsoftokn3-debuginfoUpgrade firefox3-gtk2Upgrade MozillaFirefox-debuginfoUpgrade mozilla-nspr-64bitUpgrade xulrunner-buildsymbolsUpgrade firefox3-pango-32bitUpgrade mozilla-nss-certs-debuginfo-32bitUpgrade mozilla-nss-certs-debuginfo-x86Upgrade mozilla-nsprUpgrade mozilla-nspr-debuginfoUpgrade mozilla-js-debuginfo-x86Upgrade libsoftokn3-x86Upgrade seamonkey-dom-inspectorUpgrade MozillaFirefox-translationsUpgrade seamonkey-venkmanUpgrade firefox3-pangoUpgrade libfreebl3-debuginfo-32bitUpgrade enigmail-debuginfoUpgrade mozilla-nss-64bitUpgrade libfreebl3Upgrade sle-sdk-releaseUpgrade mozilla-nspr-develUpgrade seamonkey-debugsourceUpgrade seamonkey-debuginfoUpgrade libsoftokn3-debuginfo-32bitUpgrade mozilla-nss-sysinit-32bitUpgrade firefox3-cairo-32bitUpgrade MozillaThunderbird-buildsymbolsUpgrade mozilla-nspr-debugsourceUpgrade xulrunner-devel-debuginfoUpgrade MozillaFirefox-develUpgrade xulrunner-debugsourceUpgrade xulrunner-32bitUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-buildsymbolsUpgrade mozilla-nss-sysinitUpgrade mozilla-nssUpgrade mozilla-nss-debuginfo-32bitUpgrade MozillaThunderbirdUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaThunderbird-debuginfo | Feb 17, 2015 | Jan 13, 2013 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Nov 8, 2024 | Jan 13, 2013 |
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