Information disclosure in Mozilla Thunderbird
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an object's address can be discovered through hash codes, and also allows for data leakage of an object's content using these hash codes. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Thunderbird | before 45.7 | 45.7 | Patch available | CNA |
| Mozilla | Firefox ESR | before 45.7 | 45.7 | Patch available | CNA |
| Mozilla | Firefox | before 51 | 51 | Patch available | CNA |
- Thunderbird VendorMozilla Affected before 45.7 Fixed in 45.7 Patch available CNA
- 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 · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red 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 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* | 7.5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 45.7.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 51.0; before 45.7.0 | Vulnerable | Mozilla |
- 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:thunderbird:*:*:*:*:*:*:*:* Versions before 45.7.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 51.0; before 45.7.0 Vulnerable ·Mozilla
Remediation
- Fix · CNA Thunderbird (Mozilla) Fixed in 45.7
- Fix · CNA Firefox ESR (Mozilla) Fixed in 45.7
- Fix · CNA Firefox (Mozilla) Fixed in 51
Red Hat 2 advisories
- RHSA-2017:0238 Released 2017-02-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-45.7.0-1.el7_3
- Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird-45.7.0-1.el5_11, thunderbird-45.7.0-1.el5_11.i386
- Red Hat Enterprise Linux Desktop (v. 6) thunderbird-45.7.0-1.el6_8
- Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird-45.7.0-1.el5_11, thunderbird-45.7.0-1.el5_11.i386
- Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-45.7.0-1.el6_8
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-45.7.0-1.el7_3
- Red Hat Enterprise Linux Workstation (v. 6) thunderbird-45.7.0-1.el6_8
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-45.7.0-1.el7_3
- RHSA-2017:0190 Released 2017-01-25 · Red Hat rating Criticalfirefox 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, Thunderbird — DSA-3832
17 records Highest priority Priority HIGH 1 HIGH, 11 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2017-03403 Memory corruption in Mozilla ThunderbirdPriority HIGH 67
- TI-2017-03432 Use after free in Mozilla FirefoxPriority MEDIUM 59
- TI-2017-03424 Use after free in Mozilla ThunderbirdPriority MEDIUM 49
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — 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 4 more groups
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — 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
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — 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
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2017:0238
8 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 2 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
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — GLSA-201702-13
8 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 2 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
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2017:0190 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:0190 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| 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 Optional Productivity Applications (v. 5 server) | Fixed | RHSA-2017:0238 |
| 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, RHSA-2017:0238 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:0190, RHSA-2017:0238 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:0190 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:0190 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5378
- 2026-10-03 Alias added: GHSA-hx32-3942-m67q
References
More Mozilla Firefox vulnerabilities
- 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
Sources
- CVE-2017-5378 · CVE Program
- CVE-2017-5378 · NVD
- FIRST EPSS
- GHSA-hx32-3942-m67q · GitHub Advisory Database · CC BY 4.0
- CVE-2017-5378 · Red Hat security data · CC BY 4.0
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