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TI-2019-12698 Aliases CVE-2019-17015GHSA-6jgc-63f5-7hch

Out-of-bounds write in Mozilla Firefox ESR

Priority MEDIUM 42CWE-787Published · 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. Impact type from CWE-787 and the CVSS impact.

Summary

During the initialization of a new content process, a pointer offset can be manipulated leading to memory corruption and a potentially exploitable crash in the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Why it matters now

EPSS 0.01806 78th percentileScored 2026-11-07
Fix Fixed Firefox ESR (Mozilla): 68.4Firefox (Mozilla): 72

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefox ESRbefore 68.468.4Patch availableCNA
MozillaFirefoxbefore 7272Patch availableCNA
  • Firefox ESR VendorMozilla Affected before 68.4 Fixed in 68.4 Patch available CNA
  • Firefox VendorMozilla Affected before 72 Fixed in 72 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 72.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 68.4VulnerableMozilla
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 72.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 68.4 Vulnerable ·Mozilla
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · CNA Firefox ESR (Mozilla) Fixed in 68.4
  • Fix · CNA Firefox (Mozilla) Fixed in 72

Fixed in the same release

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

  • Advisory ·

    Mozilla Firefox, Firefox ESR — openSUSE-SU-2020:0060

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2019-12707 Out-of-bounds write in Mozilla Firefox ESRPriority MEDIUM 43
    • TI-2019-12700 Type confusion in Mozilla Firefox ESRPriority MEDIUM 43
    • TI-2019-12705 Cross-site scripting in Mozilla Firefox ESRPriority LOW 31
    Show all 6 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR — openSUSE-SU-2020:0094

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2019-12707 Out-of-bounds write in Mozilla Firefox ESRPriority MEDIUM 43
    • TI-2019-12700 Type confusion in Mozilla Firefox ESRPriority MEDIUM 43
    • TI-2019-12705 Cross-site scripting in Mozilla Firefox ESRPriority LOW 31
    Show all 6 records → Advisory →

Vendor assessments

Red Hat

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

Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-17015
  2. 2026-10-03 Alias added: GHSA-6jgc-63f5-7hch

References

Advisory 5

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