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TI-2017-03414 Aliases CVE-2017-5386GHSA-mjv5-g7c5-w9hq

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web…

Priority LOW 36Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.

Why it matters now

EPSS 0.02224 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Firefox ESR (Mozilla): 45.7Firefox (Mozilla): 51Red Hat: 1 advisory

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefox ESRbefore 45.745.7Patch availableCNA
MozillaFirefoxbefore 5151Patch availableCNA
  • Firefox ESR VendorMozilla Affected before 45.7 Fixed in 45.7 Patch available CNA
  • Firefox VendorMozilla Affected before 51 Fixed in 51 Patch available CNA

CPE configurations NVD · 19

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 9 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 51.0; before 45.7.0VulnerableMozilla
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 51.0; before 45.7.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox ESR (Mozilla) Fixed in 45.7
  • Fix · CNA Firefox (Mozilla) Fixed in 51

Red Hat 1 advisory

  • RHSA-2017:0190 Released 2017-01-25 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux (v. 5 server) firefox-45.7.0-2.el5_11, firefox-45.7.0-2.el5_11.i386
    • Red Hat Enterprise Linux Client (v. 7) firefox-45.7.0-2.el7_3
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.7.0-2.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.7.0-2.el5_11, firefox-45.7.0-2.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux Server (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux Server (v. 7) firefox-45.7.0-2.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.7.0-2.el6_8, firefox-45.7.0-2.el6_8.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.7.0-2.el7_3, firefox-45.7.0-2.el7_3.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-45.7.0-2.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.7.0-2.el6_8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.7.0-2.el7_3

Fixed in the same release

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

  • Advisory ·

    Mozilla Firefox, Firefox ESR — RHSA-2017:0190

    9 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2017-03403 Memory corruption in Mozilla ThunderbirdPriority HIGH 67
    • TI-2017-03424 Use after free in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2017-03418 The JSON viewer in the Developer Tools uses insecure methods to create a communication…Priority MEDIUM 49
    Show all 9 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR — GLSA-201702-22

    9 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2017-03403 Memory corruption in Mozilla ThunderbirdPriority HIGH 67
    • TI-2017-03424 Use after free in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2017-03418 The JSON viewer in the Developer Tools uses insecure methods to create a communication…Priority MEDIUM 49
    Show all 9 records → Advisory →
Show 1 more group
  • Advisory ·

    Mozilla Firefox, Firefox ESR — DSA-3771

    9 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2017-03403 Memory corruption in Mozilla ThunderbirdPriority HIGH 67
    • TI-2017-03424 Use after free in Mozilla ThunderbirdPriority MEDIUM 49
    • TI-2017-03418 The JSON viewer in the Developer Tools uses insecure methods to create a communication…Priority MEDIUM 49
    Show all 9 records → Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2017:0190
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:0190
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-5386
  2. 2026-10-03 Alias added: GHSA-mjv5-g7c5-w9hq

References

Exploit 1

Advisory 5

  • 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