Information disclosure in Google Chrome
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- 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
readAsText() can indefinitely read the file picked by the user, rather than only once at the time the file is picked in File API in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to access data on the user file system without explicit consent via a crafted HTML page.
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 |
|---|---|---|---|---|---|
| Chrome | before 66.0.3359.117 | 66.0.3359.117 | Patch available | CNA |
- Chrome VendorGoogle Affected before 66.0.3359.117 Fixed in 66.0.3359.117 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | before 66.0.3359.117 | Vulnerable | |
| 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_desktop:6.0:*:*:*:*:*:*:* | 6.0 | 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_workstation:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 66.0.3359.117 Vulnerable ·Google
- 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_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 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_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
- Fix · CNA Chrome (Google) Fixed in 66.0.3359.117
Red Hat 1 advisory
- RHSA-2018:1195 Released 2018-04-23 · Red Hat rating Criticalchromium-browser security update
- Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-66.0.3359.117-1.el6_9
- Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-66.0.3359.117-1.el6_9
- Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-66.0.3359.117-1.el6_9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 66.0.3359.117
15 records Highest priority Priority MEDIUM 3 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2018-04471 Improper input validation in Google ChromePriority MEDIUM 43
- TI-2018-04466 An asynchronous generator may return an incorrect state in V8 in Google Chrome prior to…Priority MEDIUM 41
- TI-2018-04510 Out-of-bounds read in Google ChromePriority MEDIUM 40
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop Supplementary (v. 6) | Fixed | RHSA-2018:1195 |
| Red Hat Enterprise Linux Server Supplementary (v. 6) | Fixed | RHSA-2018:1195 |
| Red Hat Enterprise Linux Workstation Supplementary (v. 6) | Fixed | RHSA-2018:1195 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6109
- 2026-10-03 Alias added: GHSA-pcp9-rq8r-pwrj
References
More Google Chrome vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2018-6109 · CVE Program
- CVE-2018-6109 · NVD
- FIRST EPSS
- GHSA-pcp9-rq8r-pwrj · GitHub Advisory Database · CC BY 4.0
- CVE-2018-6109 · 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