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An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.1, Thunderbird < 60, and Firefox < 61.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 9, 2020 |
| Debian | — | Upgrade thunderbird | Sep 18, 2018 | Jun 26, 2018 |
| Freebsd | — | Upgrade waterfoxUpgrade thunderbirdUpgrade linux-firefoxUpgrade firefoxUpgrade seamonkeyUpgrade libxulUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade firefox-esr | Jun 27, 2018 | Jun 26, 2018 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Oct 3, 2018 | Oct 2, 2018 |
| Mfsa2018 15 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 61.0 | Jun 27, 2018 | Jun 26, 2018 |
| Mfsa2018 16 | — | Upgrade to Mozilla Firefox ESR version 60.1Upgrade to the latest version of Mozilla Firefox | Jun 27, 2018 | Jun 26, 2018 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 60.0Upgrade to the latest version of Mozilla Thunderbird | Aug 7, 2018 | Aug 6, 2018 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4 | May 30, 2019 | May 30, 2019 |
| Suse | — | Upgrade mozillafirefox-buildsymbolsUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaThunderbird-buildsymbols | Jun 29, 2018 | Jun 26, 2018 |
| Ubuntu | — | Upgrade firefox | Jul 12, 2018 | Jun 26, 2018 |
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