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TI-2018-08885 Aliases CVE-2018-12385GHSA-w434-f353-fv6q

Improper input validation in Mozilla Thunderbird

Priority LOW 31CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

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.

Why it matters now

EPSS 0.00358 29th percentileScored 2026-11-07
Fix Fixed Thunderbird (Mozilla): 60.2.1Firefox ESR (Mozilla): 60.2.1+1 more productRed Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaThunderbirdbefore 60.2.160.2.1Patch availableCNA
MozillaFirefox ESRbefore 60.2.160.2.1Patch availableCNA
MozillaFirefoxbefore 62.0.262.0.2Patch availableCNA
  • Thunderbird VendorMozilla Affected before 60.2.1 Fixed in 60.2.1 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 60.2.1 Fixed in 60.2.1 Patch available CNA
  • Firefox VendorMozilla Affected before 62.0.2 Fixed in 62.0.2 Patch available CNA

CPE configurations NVD · 18

CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 62.0.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 60.2.1VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 60.2.1VulnerableMozilla
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 62.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 60.2.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 60.2.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Thunderbird (Mozilla) Fixed in 60.2.1
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 60.2.1
  • Fix · CNA Firefox (Mozilla) Fixed in 62.0.2

Red Hat 4 advisories

  • RHSA-2018:3458 Released 2018-11-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-60.2.1-4.el7_5
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-60.2.1-4.el7_5
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-60.2.1-4.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) thunderbird-60.2.1-4.el7_5
  • RHSA-2018:3403 Released 2018-10-30 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-60.2.1-5.el6
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-60.2.1-5.el6
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-60.2.1-5.el6
  • RHSA-2018:2835 Released 2018-09-27 · Red Hat rating Moderate
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux Server (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-60.2.1-1.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) firefox-60.2.1-1.el7_5
Show 1 more Red Hat advisories
  • RHSA-2018:2834 Released 2018-09-27 · Red Hat rating Moderate
    firefox security update
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-60.2.1-1.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-60.2.1-1.el6
    • 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
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-60.2.1-1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-60.2.1-1.el6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-60.2.1-1.el6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — USN-3793-1

    5 records Highest priority Priority MEDIUM 3 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2018-08879 Use after free in Mozilla FirefoxPriority MEDIUM 48
    • TI-2018-08878 Use after free in Mozilla FirefoxPriority MEDIUM 48
    • TI-2018-08877 Memory corruption in Mozilla FirefoxPriority MEDIUM 48
    Show all 5 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR — USN-3778-1

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2018-08887 Improper input validation in Mozilla Firefox ESRPriority MEDIUM 51
    • TI-2018-08886 Incorrect type conversion in Mozilla Firefox ESRPriority MEDIUM 50
    Show all 3 records → Advisory →
Show 3 more groups
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2018:2834

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2018-08883 Insufficiently protected credentials in Mozilla FirefoxPriority LOW 25
    Show all 2 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2018:2835

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2018-08883 Insufficiently protected credentials in Mozilla FirefoxPriority LOW 25
    Show all 2 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — DSA-4304

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2018-08883 Insufficiently protected credentials in Mozilla FirefoxPriority LOW 25
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:2835, RHSA-2018:3458
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:2835
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:2834, RHSA-2018:3403
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:2834
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:2834
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:2834
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:2835
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:2834, RHSA-2018:3403
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:2835, RHSA-2018:3458
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:2834, RHSA-2018:3403
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:2835, RHSA-2018:3458
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:2834
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:2835
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:2835
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:3458
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12385
  2. 2026-10-03 Alias added: GHSA-w434-f353-fv6q

References

Advisory 15

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences