An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Base Score: 9.1
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | alpine-linux-upgrade-firefox-esr | Nov 8, 2019 | Jun 11, 2018 |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Jun 11, 2018 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfo | Apr 21, 2017 | Apr 20, 2017 |
| Debian | debian-upgrade-firefox-esr | Apr 20, 2017 | Apr 20, 2017 | |
| Freebsd | freebsd-upgrade-package-firefoxfreebsd-upgrade-package-seamonkeyfreebsd-upgrade-package-linux-seamonkeyfreebsd-upgrade-package-firefox-esrfreebsd-upgrade-package-linux-firefoxfreebsd-upgrade-package-libxulfreebsd-upgrade-package-thunderbirdfreebsd-upgrade-package-linux-thunderbird | Apr 20, 2017 | Apr 19, 2017 | |
| Gentoo Linux | gentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Feb 20, 2018 | Feb 20, 2018 | |
| Mfsa2017 10 | mozilla-firefox-upgrade-53_0 | Jul 12, 2018 | Jun 11, 2018 | |
| Mfsa2017 11 | mozilla-firefox-esr-upgrade-45_9 | Apr 20, 2017 | Apr 19, 2017 | |
| Mfsa2017 12 | mozilla-firefox-esr-upgrade-52_1 | Apr 20, 2017 | Apr 19, 2017 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-52_1 | May 2, 2017 | Apr 30, 2017 | |
| Oracle Solaris | oracle-solaris-11-3-upgrade-web-browser-firefox-45-9-0-0-175-3-20-0-3-0oracle-solaris-11-3-upgrade-web-browser-firefox-plugin-firefox-java-45-9-0-0-175-3-20-0-3-0oracle-solaris-11-3-upgrade-web-data-firefox-bookmarks-45-9-0-0-175-3-20-0-3-0oracle-solaris-11-4-upgrade-entire-11-4-11-4-0-0-1-15-0 | May 29, 2017 | May 29, 2017 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Apr 20, 2017 | Apr 19, 2017 |
| Redhat_linux | — | redhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginfo | Apr 20, 2017 | Apr 20, 2017 |
| Suse | — | suse-upgrade-java-1_8_0-openjdksuse-upgrade-java-1_8_0-openjdk-demosuse-upgrade-java-1_8_0-openjdk-develsuse-upgrade-java-1_8_0-openjdk-headlesssuse-upgrade-libfreebl3suse-upgrade-libfreebl3-32bitsuse-upgrade-libfreebl3-hmacsuse-upgrade-libfreebl3-hmac-32bitsuse-upgrade-libfreebl3-x86suse-upgrade-libsoftokn3suse-upgrade-libsoftokn3-32bitsuse-upgrade-libsoftokn3-hmacsuse-upgrade-libsoftokn3-hmac-32bitsuse-upgrade-libsoftokn3-x86suse-upgrade-mozilla-nsprsuse-upgrade-mozilla-nspr-32bitsuse-upgrade-mozilla-nspr-develsuse-upgrade-mozilla-nspr-x86suse-upgrade-mozilla-nsssuse-upgrade-mozilla-nss-32bitsuse-upgrade-mozilla-nss-certssuse-upgrade-mozilla-nss-certs-32bitsuse-upgrade-mozilla-nss-develsuse-upgrade-mozilla-nss-sysinitsuse-upgrade-mozilla-nss-sysinit-32bitsuse-upgrade-mozilla-nss-toolssuse-upgrade-mozilla-nss-x86suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-slesuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-buildsymbolssuse-upgrade-mozillafirefox-debuginfosuse-upgrade-mozillafirefox-debugsourcesuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translationssuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-buildsymbolssuse-upgrade-mozillathunderbird-debuginfosuse-upgrade-mozillathunderbird-debugsourcesuse-upgrade-mozillathunderbird-develsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Apr 24, 2017 | Apr 20, 2017 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Apr 21, 2017 | Apr 20, 2017 |
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