CVE-2018-12397: canonical ubuntu_linux
Vulnerability summary
CVE-2018-12397 is a high (CVSS 7.1) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 12 · Related 7Timeline
- 28-02-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.37% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat4 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_eus7.5
- enterprise_linux_workstation6.0 | 7.0
Ubuntu3 products
- firefox< 63.0+build2-0ubuntu0.14.04.2 | < 63.0+build2-0ubuntu0.16.04.2 | < 63.0+build2-0ubuntu0.18.04.2
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
Debian2 products
- firefox-esr< 60.3.0esr-1
- debian_linuxEOL8.0 | 9.0
Mozilla2 products
- firefox≥ unspecified, < 63 | < 60.3.0 | < 63.0
- firefox_esr≥ unspecified, < 60.3
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
5 vendors · 12 products
References
17 links- bugzilla.mozilla.org/show_bug.cgi?id=1487478X Refsource CONFIRMIssue TrackingPermissions RequiredVendor Advisory
- lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlMailing ListX Refsource MLISTThird Party Advisory