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Fencer Vulns
high 7.0

CVE-2018-12385 json

A potentially exploitable crash in TransportSecurityInfo used for SSL can be triggered by data stored in the local cache in the user profil…

published 2018-10-18 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4359

cvss
7.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

A potentially exploitable crash in TransportSecurityInfo used for SSL can be triggered by data stored in the local cache in the user profile directory. This issue is only exploitable in combination with another vulnerability allowing an attacker to write data into the local cache or from locally installed malware. This issue also triggers a non-exploitable startup crash for users switching between the Nightly and Release versions of Firefox if the same profile is used. This vulnerability affects Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox < 62.0.2.

Patch / fix

  • Mozilla Thunderbird 60.2.1
  • Mozilla Firefox ESR 60.2.1
  • Mozilla Firefox 62.0.2
  • firefox-esr Debian 14, Debian 13, Debian 12 60.2.1esr-1
  • thunderbird Debian 14, Debian 13, Debian 12 1:60.2.1-1

debian advisories DEBIAN-CVE-2018-12385

  • firefox Ubuntu 14.04 LTS 62.0.3+build1-0ubuntu0.14.04.2
  • firefox Ubuntu 16.04 LTS 62.0.3+build1-0ubuntu0.16.04.2
  • firefox Ubuntu 18.04 LTS 62.0.3+build1-0ubuntu0.18.04.1
  • thunderbird Ubuntu 14.04 LTS 1:60.2.1+build1-0ubuntu0.14.04.2
  • thunderbird Ubuntu 16.04 LTS 1:60.2.1+build1-0ubuntu0.16.04.4
  • thunderbird Ubuntu 18.04 LTS 1:60.2.1+build1-0ubuntu0.18.04.2

ubuntu advisories UBUNTU-CVE-2018-12385

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • thunderbird RHEL 7 60.2.1-4.el7_5
  • thunderbird RHEL 6 60.2.1-5.el6
  • firefox RHEL 6 60.2.1-1.el6
  • firefox RHEL 7 60.2.1-1.el7_5

red hat advisories RHSA-2018:3458RHSA-2018:3403RHSA-2018:2834RHSA-2018:2835

  • apache2-mod_nss SLES 12 SP4, SLES 12 SP3, OpenStack Cloud 7 +7 more 1.0.14-19.6.3
  • mozilla-nss SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 3.36.4-58.15.3
  • mozilla-nspr SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 4.19-19.3.1
  • MozillaFirefox SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 60.2.2esr-109.46.1
  • MozillaFirefox-branding-SLE SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +10 more 60-32.3.1
  • MozillaFirefox SLE Module for Desktop Applications 15 60.2.2-3.13.3
  • MozillaFirefox-branding-SLE SLE Module for Desktop Applications 15 60-4.5.3
  • MozillaThunderbird SLE Workstation Extension 15 60.2.1-3.13.1

suse advisories SUSE-SU-2018:3591-2SUSE-SU-2018:3591-1SUSE-SU-2018:3476-1SUSE-SU-2018:3247-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 92.0-1.2
  • MozillaThunderbird openSUSE Tumbleweed 91.1.1-1.1
  • MozillaThunderbird Package Hub 12 60.3.0-74.2

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10600-1openSUSE-SU-2024:10601-1openSUSE-SU-2018:3687-1

  • thunderbird Arch Linux 60.2.1-1

arch linux advisories AVG-782

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-12385 updated cvss 6.1

Mozilla: Crash in TransportSecurityInfo due to cached data

  • Red Hat Enterprise Linux Client (v. 7) firefox 60.2.1-1.el7_5, thunderbird 60.2.1-4.el7_5 Red Hat Enterprise Linux Client Optional (v. 7) firefox 60.2.1-1.el7_5
    fixed: vendor fix RHSA-2018:2835
  • Red Hat Enterprise Linux Desktop (v. 6) firefox 60.2.1-1.el6, thunderbird 60.2.1-5.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 60.2.1-1.el6
    fixed: vendor fix RHSA-2018:2834
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) firefox 60.2.1-1.el7_5
    fixed: vendor fix RHSA-2018:2835
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) thunderbird 60.2.1-4.el7_5
    fixed: vendor fix RHSA-2018:3458
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 60.2.1-1.el6 Red Hat Enterprise Linux Server (v. 6) firefox 60.2.1-1.el6
    fixed: vendor fix RHSA-2018:2834
  • Red Hat Enterprise Linux Server (v. 7) firefox 60.2.1-1.el7_5
    fixed: vendor fix RHSA-2018:2835
  • Red Hat Enterprise Linux Server Optional (v. 6) firefox 60.2.1-1.el6, thunderbird 60.2.1-5.el6
    fixed: vendor fix RHSA-2018:2834
  • Red Hat Enterprise Linux Server Optional (v. 7) firefox 60.2.1-1.el7_5, thunderbird 60.2.1-4.el7_5
    fixed: vendor fix RHSA-2018:2835
show 5 more
  • Red Hat Enterprise Linux Workstation (v. 6) firefox 60.2.1-1.el6, thunderbird 60.2.1-5.el6
    fixed: vendor fix RHSA-2018:2834
  • Red Hat Enterprise Linux Workstation (v. 7) firefox 60.2.1-1.el7_5, thunderbird 60.2.1-4.el7_5
    fixed: vendor fix RHSA-2018:2835
  • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 60.2.1-1.el6
    fixed: vendor fix RHSA-2018:2834
  • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 60.2.1-1.el7_5
    fixed: vendor fix RHSA-2018:2835
  • Red Hat Enterprise Linux 8 firefox, thunderbird
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Mozilla Thunderbird
  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.