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TI-2023-03360 Aliases CVE-2023-3600GHSA-f7m4-v8xh-mj88

Use-after-free in workers

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
Fixed

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

Summary

During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00634 50th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 115.0.2Firefox ESR (Mozilla): 115.0.2+1 more productRed Hat: 16 advisories

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
MozillaFirefoxbefore 115.0.2115.0.2Patch availableCNA
MozillaFirefox ESRbefore 115.0.2115.0.2Patch availableCNA
MozillaThunderbirdbefore 115.0.1115.0.1Patch availableCNA
  • Firefox VendorMozilla Affected before 115.0.2 Fixed in 115.0.2 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 115.0.2 Fixed in 115.0.2 Patch available CNA
  • Thunderbird VendorMozilla Affected before 115.0.1 Fixed in 115.0.1 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 115.0.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 115.0.2VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 115.0.1VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 115.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 115.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 115.0.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 115.0.2
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 115.0.2
  • Fix · CNA Thunderbird (Mozilla) Fixed in 115.0.1

Red Hat 16 advisories

  • RHSA-2023:5475 Released 2023-10-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-115.3.1-1.el7_9
  • RHSA-2023:5477 Released 2023-10-05 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-115.3.1-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-115.3.1-1.el7_9
  • RHSA-2023:5429 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-115.3.1-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-115.3.1-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-115.3.1-1.el8_4
Show 13 more Red Hat advisories
  • RHSA-2023:5434 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-115.3.1-1.el9_2, firefox-x11-115.3.1-1.el9_2
  • RHSA-2023:5438 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-115.3.1-1.el8_1
  • RHSA-2023:5426 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-115.3.1-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-115.3.1-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-115.3.1-1.el8_2
  • RHSA-2023:5432 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-115.3.1-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-115.3.1-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-115.3.1-1.el8_2
  • RHSA-2023:5433 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-115.3.1-1.el8_8
  • RHSA-2023:5437 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-115.3.1-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-115.3.1-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-115.3.1-1.el8_4
  • RHSA-2023:5440 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-115.3.1-1.el8_1
  • RHSA-2023:5439 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-115.3.1-1.el9_0
  • RHSA-2023:5436 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-115.3.1-1.el8_6
  • RHSA-2023:5435 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-115.3.1-1.el9_2
  • RHSA-2023:5430 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-115.3.1-1.el8_6
  • RHSA-2023:5428 Released 2023-10-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-115.3.1-1.el8_8
  • RHSA-2023:5427 Released 2023-10-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-115.3.1-1.el9_0

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:5428, RHSA-2023:5433
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:5434, RHSA-2023:5435
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:5426, RHSA-2023:5432
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2023:5429, RHSA-2023:5437
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:5438, RHSA-2023:5440
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:5426, RHSA-2023:5432
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2023:5429, RHSA-2023:5437
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:5430, RHSA-2023:5436
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:5427, RHSA-2023:5439
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:5426, RHSA-2023:5432
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2023:5429, RHSA-2023:5437
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:5475, RHSA-2023:5477
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:5477
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:5477
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:5475, RHSA-2023:5477
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:5475, RHSA-2023:5477
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:5477
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3600
  2. 2026-10-03 Alias added: GHSA-f7m4-v8xh-mj88
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 3

  • 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