X105d FirmwareOperating system · Asus

CVE-2019-15419

HIGH · 7.8 CVSS v3.1 Published 2019-11-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Asus ASUS_X015_1 Android device with a build fingerprint of asus/CN_X015/ASUS_X015_1:7.0/NRD90M/CN_X015-14.00.1709.35-20171215:user/release-keys contains a pre-installed app with a package name of com.lovelyfont.defcontainer app (versionCode=5, versionName=5.0.1) that allows unauthorized command execution via a confused deputy attack. This capability can be accessed by any app co-located on the device.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A pre-installed font-related application (com.lovelyfont.defcontainer, version 5.0.1) on the Asus ASUS_X015_1 Android device contains a confused deputy vulnerability that allows any co-located app to execute commands with elevated privileges. The app exposes a protected capability intended for system use but accessible to all apps on the device, enabling unauthorized command execution.

MitigationThis vulnerability requires a firmware update from Asus to patch or remove the vulnerable pre-installed application; users should not install apps from untrusted sources and should check for available system updates.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
X105d FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model
    Check the device model in Settings > About Phone or run 'getprop ro.product.model' via ADB
    Affected if Device model is Asus X105d or ASUS_X015_1
  2. Verify vulnerable app is present
    Check for the package com.loovyfont.defcontainer in installed apps list using ADB command: 'pm list packages | grep lovelyfont' or via Settings > Apps
    Affected if Package com.lovelyfont.defcontainer is installed on the device
  3. Confirm app version
    Run 'dumpsys package com.lovelyfont.defcontainer' via ADB to retrieve the installed version, or view it in App Info screen
    Affected if Version is 5.0.1 or if the app exists regardless of version on affected firmware
  4. Check for exposed capability
    Run 'dumpsys package com.lovelyfont.defcontainer' and inspect the exported components (services, receivers, providers) in the output
    Affected if The app exports components that are accessible to other apps (exported=true in manifest)
  5. Verify app has elevated privileges
    Review the app's declared permissions via 'dumpsys package com.lovelyfont.defcontainer' - look for system-level or signature permissions
    Affected if The app declares permissions beyond what a normal user app would have

User is affected if they are using an Asus X105d or ASUS_X015_1 device with the com.lovelyfont.defcontainer app installed, as the exposed protected capability allows any app to execute privileged commands.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

This vulnerability requires a firmware update from Asus to patch or remove the vulnerable pre-installed application; users should not install apps from untrusted sources and should check for available system updates.

Fix this in X105d Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing3.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,050
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-15419 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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