Read the docs
TI-2022-22375 Aliases CVE-2022-45409GHSA-9p3c-x5jh-9p27

Use after free in Mozilla Firefox ESR

Priority MEDIUM 41CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 15 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00788 56th percentileScored 2026-11-07
Fix Partial Firefox ESR (Mozilla): 102.5Thunderbird (Mozilla): 102.5+1 more productRed Hat: 16 advisoriesRed Hat: 15 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefox ESRbefore 102.5102.5Patch availableCNA
MozillaThunderbirdbefore 102.5102.5Patch availableCNA
MozillaFirefoxbefore 107107Patch availableCNA
  • Firefox ESR VendorMozilla Affected before 102.5 Fixed in 102.5 Patch available CNA
  • Thunderbird VendorMozilla Affected before 102.5 Fixed in 102.5 Patch available CNA
  • Firefox VendorMozilla Affected before 107 Fixed in 107 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 107.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 102.5VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 102.5VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 107.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 102.5 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 102.5 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox ESR (Mozilla) Fixed in 102.5
  • Fix · CNA Thunderbird (Mozilla) Fixed in 102.5
  • Fix · CNA Firefox (Mozilla) Fixed in 107

Red Hat 16 advisories

  • RHSA-2022:8979 Released 2022-12-13 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-102.5.0-1.el9_0
  • RHSA-2022:8980 Released 2022-12-13 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-102.5.0-2.el9_0
  • RHSA-2022:8580 Released 2022-11-22 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-102.5.0-1.el9_1
Show 13 more Red Hat advisories
  • RHSA-2022:8561 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.5.0-2.el9_1
  • RHSA-2022:8555 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-102.5.0-2.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.5.0-2.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.5.0-2.el7_9
  • RHSA-2022:8552 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-102.5.0-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.5.0-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-102.5.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.5.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-102.5.0-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.5.0-1.el7_9
  • RHSA-2022:8556 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.5.0-2.el8_1
  • RHSA-2022:8554 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-102.5.0-1.el8_7
  • RHSA-2022:8553 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.5.0-1.el8_1
  • RHSA-2022:8549 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-102.5.0-1.el8_4
  • RHSA-2022:8550 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.5.0-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.5.0-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.5.0-1.el8_2
  • RHSA-2022:8548 Released 2022-11-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-102.5.0-1.el8_6
  • RHSA-2022:8547 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.5.0-2.el8_7
  • RHSA-2022:8545 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-102.5.0-2.el8_6
  • RHSA-2022:8544 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-102.5.0-2.el8_4
  • RHSA-2022:8543 Released 2022-11-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.5.0-2.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.5.0-2.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.5.0-2.el8_2

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 107

    19 records Highest priority Priority HIGH 1 HIGH, 12 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2022-22381 Unrestricted file upload in Mozilla FirefoxPriority HIGH 69
    • TI-2022-22371 Use after free in Mozilla Firefox ESRPriority MEDIUM 62
    • TI-2022-22370 Through a series of popup and <code>window.print()</code> calls, an attacker can cause a…Priority MEDIUM 62
    Show all 19 records →
  • Release ·

    Mozilla Firefox ESR, Thunderbird 102.5

    13 records Highest priority Priority MEDIUM 8 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2022-22371 Use after free in Mozilla Firefox ESRPriority MEDIUM 62
    • TI-2022-22370 Through a series of popup and <code>window.print()</code> calls, an attacker can cause a…Priority MEDIUM 62
    • TI-2022-22384 Clickjacking in Mozilla Firefox ESRPriority MEDIUM 60
    Show all 13 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:8547, RHSA-2022:8554
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:8561, RHSA-2022:8580
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2022:8543, RHSA-2022:8550
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2022:8553, RHSA-2022:8556
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2022:8543, RHSA-2022:8550
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:8544, RHSA-2022:8549
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2022:8545, RHSA-2022:8548
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2022:8979, RHSA-2022:8980
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2022:8543, RHSA-2022:8550
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:8552, RHSA-2022:8555
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:8552
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:8552
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:8552, RHSA-2022:8555
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:8552, RHSA-2022:8555
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:8552

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-45409
  2. 2026-10-03 Alias added: GHSA-9p3c-x5jh-9p27

References

Advisory 4

  • 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