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
Same-origin policy protections can be bypassed on pages with embedded iframes during page reloads, allowing the iframes to access content on the top level page, leading to information disclosure. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
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 52.3 | 52.3 | Patch available | CNA |
| Mozilla | Firefox ESR | before 52.3 | 52.3 | Patch available | CNA |
| Mozilla | Firefox | before 55 | 55 | Patch available | CNA |
- Thunderbird VendorMozilla Affected before 52.3 Fixed in 52.3 Patch available CNA
- Firefox ESR VendorMozilla Affected before 52.3 Fixed in 52.3 Patch available CNA
- Firefox VendorMozilla Affected before 55 Fixed in 55 Patch available CNA
CPE configurations NVD · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | 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:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 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
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| 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 52.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 55.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | before 52.3 | Vulnerable | Mozilla |
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- 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 52.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 55.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 52.3 Vulnerable ·Mozilla
Remediation
- Fix · CNA Thunderbird (Mozilla) Fixed in 52.3
- Fix · CNA Firefox ESR (Mozilla) Fixed in 52.3
- Fix · CNA Firefox (Mozilla) Fixed in 55
Red Hat 2 advisories
- RHSA-2017:2534 Released 2017-08-24 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-52.3.0-1.el7_4
- Red Hat Enterprise Linux Desktop (v. 6) thunderbird-52.3.0-1.el6_9
- Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-52.3.0-1.el6_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-52.3.0-1.el7_4
- Red Hat Enterprise Linux Workstation (v. 6) thunderbird-52.3.0-1.el6_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-52.3.0-1.el7_4
- RHSA-2017:2456 Released 2017-08-10 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-52.3.0-2.el7_4
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-52.3.0-2.el7_4
- Red Hat Enterprise Linux Desktop (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux Server (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux Server (v. 7) firefox-52.3.0-2.el7_4
- Red Hat Enterprise Linux Server Optional (v. 6) firefox-52.3.0-3.el6_9, firefox-52.3.0-3.el6_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-52.3.0-2.el7_4, firefox-52.3.0-2.el7_4.ppc
- Red Hat Enterprise Linux Workstation (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-52.3.0-2.el7_4
- Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-52.3.0-3.el6_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-52.3.0-2.el7_4
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-201803-14
21 records Highest priority Priority MEDIUM 13 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2017-05404 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05403 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05441 Memory corruption in Mozilla FirefoxPriority MEDIUM 48
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2017:2456
13 records Highest priority Priority MEDIUM 9 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2017-05404 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05403 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05410 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
Show 3 more groups
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — DSA-3928
13 records Highest priority Priority MEDIUM 9 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2017-05404 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05403 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05410 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2017:2534
12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2017-05404 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05403 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05410 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
- Advisory ·
Mozilla Firefox, Firefox ESR, Thunderbird — DSA-3968
12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2017-05404 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05403 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 49
- TI-2017-05410 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:2456, RHSA-2017:2534 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:2456 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:2456 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7787
- 2026-10-03 Alias added: GHSA-6g35-2rw4-ch3p
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-2017-7787 · CVE Program
- CVE-2017-7787 · NVD
- FIRST EPSS
- GHSA-6g35-2rw4-ch3p · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7787 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences