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

CVE-2018-12376

Description

Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. 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/Firefoxv54 versions
unspecified+ 3 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- (no CPE)range: <62
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <60.2.0
Mozilla Corporation/Thunderbirdv53 versions
unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: <60.2.1
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <60.2.1
osv-coords75 versions
pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Package%20Hub%2012 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/MozillaFirefox&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%20SP1 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/mozilla-nss&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-branding-SLE&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%20SP2 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&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%20SP3 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4 pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%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/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%204
< 4.19-19.3.1+ 74 more
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 60.3.0-74.2
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60.2.0-3.10.1
- (no CPE)range: < 60-4.3.1
- (no CPE)range: < 60.2.1-3.13.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 60-32.3.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 60.2.2esr-109.46.1
- (no CPE)range: < 4.19-19.3.1
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 1.0.14-19.6.3
- (no CPE)range: < 3.36.4-58.15.3
- (no CPE)range: < 92.0-1.2
- (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: < 60.2.2esr-109.46.1
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:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
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:*:*:*

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
bugzilla.mozilla.org/buglist.cginvdIssue TrackingThird 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

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