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TI-2023-03764 Aliases CVE-2023-4057GHSA-cj4r-xrp8-3mj8

Out-of-bounds write in Mozilla Firefox

Priority MEDIUM 51CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 17 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00888 59th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 116Firefox ESR (Mozilla): 115.1+1 more productRed Hat: 16 advisoriesRed Hat: 17 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 116116Patch availableCNA
MozillaFirefox ESRbefore 115.1115.1Patch availableCNA
MozillaThunderbirdbefore 115.1115.1Patch availableCNA
  • Firefox VendorMozilla Affected before 116 Fixed in 116 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 115.1 Fixed in 115.1 Patch available CNA
  • Thunderbird VendorMozilla Affected before 115.1 Fixed in 115.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 116.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 115.1VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 116.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 115.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 116
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 115.1
  • Fix · CNA Thunderbird (Mozilla) Fixed in 115.1

Red Hat 16 advisories

  • RHSA-2023:4500 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-102.14.0-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-102.14.0-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-102.14.0-1.el8_4
  • RHSA-2023:4497 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.14.0-1.el8_8
  • RHSA-2023:4499 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.14.0-1.el9_2
Show 13 more Red Hat advisories
  • RHSA-2023:4495 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.14.0-1.el7_9
  • RHSA-2023:4496 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.14.0-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.14.0-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.14.0-1.el8_2
  • RHSA-2023:4493 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-102.14.0-1.el8_6
  • RHSA-2023:4494 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-102.14.0-1.el9_0
  • RHSA-2023:4492 Released 2023-08-07 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.14.0-1.el8_1
  • RHSA-2023:4468 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-102.14.0-1.el8_8
  • RHSA-2023:4469 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-102.14.0-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-102.14.0-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-102.14.0-1.el8_4
  • RHSA-2023:4461 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-102.14.0-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.14.0-1.el7_9
  • RHSA-2023:4463 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-102.14.0-1.el8_6
  • RHSA-2023:4465 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-102.14.0-1.el9_0
  • RHSA-2023:4464 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.14.0-1.el8_1
  • RHSA-2023:4462 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-102.14.0-1.el9_2, firefox-x11-102.14.0-1.el9_2
  • RHSA-2023:4460 Released 2023-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.14.0-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.14.0-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.14.0-1.el8_2

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 116

    14 records Highest priority Priority MEDIUM 8 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
    • TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    • TI-2023-03765 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 43
    Show all 14 records →
  • Release ·

    Mozilla Firefox ESR 115.1

    11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
    • TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
    • TI-2023-03755 Out-of-bounds read in Mozilla FirefoxPriority MEDIUM 41
    Show all 11 records →
Show 1 more group
  • Release ·

    Mozilla Thunderbird 115.1

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-03759 Link following in Mozilla FirefoxPriority LOW 30
    • TI-2023-03761 When opening appref-ms files, Firefox did not warn the user that these files may contain…Priority LOW 24
    Show all 3 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-2023:4468, RHSA-2023:4497
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:4462, RHSA-2023:4499
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:4460, RHSA-2023:4496
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2023:4469, RHSA-2023:4500
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:4464, RHSA-2023:4492
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:4460, RHSA-2023:4496
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2023:4469, RHSA-2023:4500
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:4463, RHSA-2023:4493
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:4465, RHSA-2023:4494
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:4460, RHSA-2023:4496
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2023:4469, RHSA-2023:4500
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:4461, RHSA-2023:4495
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:4461
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:4461
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:4461, RHSA-2023:4495
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:4461, RHSA-2023:4495
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:4461

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4057
  2. 2026-10-03 Alias added: GHSA-cj4r-xrp8-3mj8

References

Advisory 2

Other 2

  • 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