Critical severity9.8NVD Advisory· Published Oct 18, 2018· Updated Jun 17, 2026

CVE-2018-12378

Description

A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mozilla Corporation/Firefox4 versions
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <60.2.0
- (no CPE)range: <62
- (no CPE)range: unspecified
- (no CPE)range: unspecified
Mozilla Corporation/Thunderbird3 versions
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <60.2.1
- (no CPE)range: <60.2.1
- (no CPE)range: unspecified
Canonical/Ubuntu Linux3 versions
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Desktop2 versions
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server2 versions
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server Aus
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Eus2 versions
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server Tus
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation2 versions
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
osv-coords75 versions
pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015 pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Package%20Hub%2012 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%207
< 92.0-1.2+ 74 more
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.0-3.10.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-4.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60.2.1-3.13.1
- (no CPE)range: < 60.3.0-74.2
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 3.36.4-58.15.3

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/105280nvdThird Party AdvisoryVDB Entry
www.securitytracker.com/id/1041610nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2018:2692nvdThird Party Advisory
access.redhat.com/errata/RHSA-2018:2693nvdThird Party Advisory
access.redhat.com/errata/RHSA-2018:3403nvdThird Party Advisory
access.redhat.com/errata/RHSA-2018:3458nvdThird Party Advisory
lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlnvdMailing ListThird Party Advisory
security.gentoo.org/glsa/201810-01nvdThird Party Advisory
security.gentoo.org/glsa/201811-13nvdThird Party Advisory
usn.ubuntu.com/3761-1/nvdThird Party Advisory
usn.ubuntu.com/3793-1/nvdThird Party Advisory
www.debian.org/security/2018/dsa-4287nvdThird Party Advisory
www.debian.org/security/2018/dsa-4327nvdThird Party Advisory
www.mozilla.org/security/advisories/mfsa2018-20/nvdVendor Advisory
www.mozilla.org/security/advisories/mfsa2018-21/nvdVendor Advisory
www.mozilla.org/security/advisories/mfsa2018-25/nvdVendor Advisory
bugzilla.mozilla.org/show_bug.cginvdIssue Tracking

News mentions

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cvss	0.637
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000