High severity7.8NVD Advisory· Published Oct 18, 2018· Updated Jun 17, 2026
CVE-2018-12379
CVE-2018-12379
Description
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. 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
77<62+ 2 more
- (no CPE)range: <62
- (no CPE)range: unspecified
- (no CPE)range: unspecified
<60.2.1+ 1 more
- (no CPE)range: <60.2.1
- (no CPE)range: unspecified
- osv-coords72 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/apache2-mod_nss&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/mozilla-nss&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%207
< 128.5.1-1.1+ 71 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 92.0-1.2
- (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: < 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: < 60.2.2esr-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: < 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
14- 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/show_bug.cginvdIssue TrackingPermissions RequiredVendor 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
- 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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