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TI-2018-08867 Aliases CVE-2018-12366GHSA-prjg-83q2-8vgv

Out-of-bounds read in Mozilla Thunderbird

Priority LOW 35CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Why it matters now

EPSS 0.03158 88th percentileScored 2026-11-07
Fix Fixed Thunderbird (Mozilla): 60, 52.9Firefox ESR (Mozilla): 60.1, 52.9+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; before 52.960, 52.9Patch availableCNA
MozillaFirefox ESRbefore 60.1; before 52.960.1, 52.9Patch availableCNA
MozillaFirefoxbefore 6161Patch availableCNA
  • Thunderbird VendorMozilla Affected before 60; before 52.9 Fixed in 60, 52.9 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 60.1; before 52.9 Fixed in 60.1, 52.9 Patch available CNA
  • Firefox VendorMozilla Affected before 61 Fixed in 61 Patch available CNA

CPE configurations NVD · 19

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 9 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:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 61.0; 53.0 to before 60.1.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 52.9VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 52.9; 52.9.1 to before 60.0VulnerableMozilla
  • 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:17.10:*:*:*:*:*:*:* Versions 17.10 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 61.0; 53.0 to before 60.1.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 52.9 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 52.9; 52.9.1 to before 60.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Thunderbird (Mozilla) Fixed in 60, 52.9
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 60.1, 52.9
  • Fix · CNA Firefox (Mozilla) Fixed in 61

Red Hat 4 advisories

  • RHSA-2018:2251 Released 2018-07-24 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-52.9.1-1.el6
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-52.9.1-1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-52.9.1-1.el6
  • RHSA-2018:2252 Released 2018-07-24 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-52.9.1-1.el7_5
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-52.9.1-1.el7_5
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-52.9.1-1.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) thunderbird-52.9.1-1.el7_5
  • RHSA-2018:2112 Released 2018-06-28 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux Server (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-60.1.0-5.el6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-60.1.0-5.el6
Show 1 more Red Hat advisories
  • RHSA-2018:2113 Released 2018-06-28 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux Server (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-60.1.0-4.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) firefox-60.1.0-4.el7_5

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-3705-1

    16 records Highest priority Priority MEDIUM 12 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2018-03751 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-03720 Improper input validation in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08870 Incorrect authorization in Mozilla Firefox ESRPriority MEDIUM 47
    Show all 16 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2018:2251

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2018-03751 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08860 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2018-08863 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 11 records → Advisory →
Show 4 more groups
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2018:2252

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2018-03751 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08860 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2018-08863 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 11 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — USN-3714-1

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2018-03751 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08860 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2018-08863 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 11 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — DSA-4244

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2018-03751 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08860 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2018-08863 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 11 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — DSA-4235

    8 records Highest priority Priority MEDIUM 6 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2018-03720 Improper input validation in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2018-08860 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 46
    • TI-2018-08863 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 45
    Show all 8 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-2018:2113, RHSA-2018:2252
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:2113
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:2112, RHSA-2018:2251
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:2112
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:2112
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:2112
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:2113
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:2112, RHSA-2018:2251
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:2113, RHSA-2018:2252
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:2112, RHSA-2018:2251
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:2113, RHSA-2018:2252
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:2112
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:2113
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:2113
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:2252
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12366
  2. 2026-10-03 Alias added: GHSA-prjg-83q2-8vgv

References

Advisory 18

  • 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