Incorrect permission assignment in Mozilla Firefox ESR
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 6 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message. This allows for read and write access to the local file system. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
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 | Firefox ESR | before 52.1 | 52.1 | Patch available | CNA |
| Mozilla | Firefox | before 53 | 53 | Patch available | CNA |
- Firefox ESR VendorMozilla Affected before 52.1 Fixed in 52.1 Patch available CNA
- Firefox VendorMozilla Affected before 53 Fixed in 53 Patch available CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | 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: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:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 53.0; before 52.1.0 | Vulnerable | Mozilla |
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 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: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:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 53.0; before 52.1.0 Vulnerable ·Mozilla
Remediation
- Fix · CNA Firefox ESR (Mozilla) Fixed in 52.1
- Fix · CNA Firefox (Mozilla) Fixed in 53
Red Hat 1 advisory
- RHSA-2017:1106 Released 2017-04-21 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-52.1.0-2.el7_3
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-52.1.0-2.el7_3
- Red Hat Enterprise Linux Server (v. 7) firefox-52.1.0-2.el7_3
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-52.1.0-2.el7_3, firefox-52.1.0-2.el7_3.ppc
- Red Hat Enterprise Linux Workstation (v. 7) firefox-52.1.0-2.el7_3
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-52.1.0-2.el7_3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 53
14 records Highest priority Priority MEDIUM 3 MEDIUM, 11 LOW
Other records, highest priority first
- TI-2017-03456 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
- TI-2017-03491 An issue with incorrect ownership model of "privateBrowsing" information exposed through…Priority MEDIUM 44
- TI-2017-03479 The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox…Priority LOW 39
- Release ·
Mozilla Firefox ESR 52.1
8 records Highest priority Priority MEDIUM 2 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2017-03456 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
- TI-2017-03479 The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox…Priority LOW 39
- TI-2017-03473 Improper input validation in Mozilla ThunderbirdPriority LOW 38
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1106 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1106 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1106 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1106 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1106 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1106 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5456
- 2026-10-03 Alias added: GHSA-59p4-f6m8-9792
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-2017-5456 · CVE Program
- CVE-2017-5456 · NVD
- FIRST EPSS
- GHSA-59p4-f6m8-9792 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-5456 · 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