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TI-2023-15505 Aliases CVE-2023-32206GHSA-pxpc-fwwv-9487

Out-of-bounds read in Mozilla Firefox

Priority LOW 30CWE-125Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

An out-of-bound read could have led to a crash in the RLBox Expat driver. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

Why it matters now

EPSS 0.00703 53rd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 113Firefox ESR (Mozilla): 102.11+1 more productRed Hat: 16 advisoriesRed Hat: 15 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 113113Patch availableCNA
MozillaFirefox ESRbefore 102.11102.11Patch availableCNA
MozillaThunderbirdbefore 102.11102.11Patch availableCNA
  • Firefox VendorMozilla Affected before 113 Fixed in 113 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 102.11 Fixed in 102.11 Patch available CNA
  • Thunderbird VendorMozilla Affected before 102.11 Fixed in 102.11 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 113.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 102.11VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 102.11VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 113.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 102.11 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 102.11 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 113
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 102.11
  • Fix · CNA Thunderbird (Mozilla) Fixed in 102.11

Red Hat 16 advisories

  • RHSA-2023:3221 Released 2023-05-18 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.11.0-1.el8_7
  • RHSA-2023:3220 Released 2023-05-18 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-102.11.0-2.el8_7
  • RHSA-2023:3155 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-102.11.0-1.el8_6
Show 13 more Red Hat advisories
  • RHSA-2023:3151 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-102.11.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.11.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.11.0-1.el7_9
  • RHSA-2023:3154 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-102.11.0-1.el8_4
  • RHSA-2023:3153 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.11.0-1.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.11.0-1.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.11.0-1.el8_2
  • RHSA-2023:3150 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.11.0-1.el9_2
  • RHSA-2023:3152 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.11.0-1.el8_1
  • RHSA-2023:3149 Released 2023-05-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-102.11.0-1.el9_0
  • RHSA-2023:3143 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-102.11.0-2.el9_2, firefox-x11-102.11.0-2.el9_2
  • RHSA-2023:3141 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-102.11.0-2.el8_6
  • RHSA-2023:3140 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-102.11.0-2.el8_4
  • RHSA-2023:3142 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-102.11.0-2.el9_0
  • RHSA-2023:3137 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-102.11.0-2.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.11.0-2.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-102.11.0-2.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.11.0-2.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-102.11.0-2.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.11.0-2.el7_9
  • RHSA-2023:3139 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.11.0-2.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.11.0-2.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.11.0-2.el8_2
  • RHSA-2023:3138 Released 2023-05-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.11.0-2.el8_1

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 — GLSA-202312-03

    7 records Highest priority Priority MEDIUM 2 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2023-15511 An attacker could have positioned a `datalist` element to obscure the address bar.Priority MEDIUM 53
    • TI-2023-15506 Authentication bypass by spoofing in Mozilla FirefoxPriority MEDIUM 41
    • TI-2023-15514 Out-of-bounds write in Mozilla FirefoxPriority LOW 39
    Show all 7 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — GLSA-202401-10

    7 records Highest priority Priority MEDIUM 2 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2023-15511 An attacker could have positioned a `datalist` element to obscure the address bar.Priority MEDIUM 53
    • TI-2023-15506 Authentication bypass by spoofing in Mozilla FirefoxPriority MEDIUM 41
    • TI-2023-15514 Out-of-bounds write in Mozilla FirefoxPriority LOW 39
    Show all 7 records → Advisory →

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-2023:3220, RHSA-2023:3221
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:3143, RHSA-2023:3150
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:3139, RHSA-2023:3153
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:3138, RHSA-2023:3152
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:3139, RHSA-2023:3153
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2023:3140, RHSA-2023:3154
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:3141, RHSA-2023:3155
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:3142, RHSA-2023:3149
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:3139, RHSA-2023:3153
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:3137, RHSA-2023:3151
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:3137
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:3137
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:3137, RHSA-2023:3151
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:3137, RHSA-2023:3151
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:3137

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-32206
  2. 2026-10-03 Alias added: GHSA-pxpc-fwwv-9487

References

Advisory 6

  • 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