CVE-2018-12560
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 · uneditedAn issue was discovered in the cantata-mounter D-Bus service in Cantata through 2.3.1. Arbitrary unmounts can be performed by regular users via directory traversal sequences such as a home/../sys/kernel substring.
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 · high confidenceThe cantata-mounter D-Bus service in Cantata music player versions up to 2.3.1 contains a directory traversal vulnerability allowing regular (unprivileged) users to unmount arbitrary filesystem paths by supplying traversal sequences like 'home/../sys/kernel' in unmount requests. This is a path traversal flaw in the D-Bus interface that lacks proper input validation.
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<= 2.3.1CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Check if Cantata music player is installedRun 'which cantata' or look for /usr/bin/cantata, /usr/local/bin/cantataAffected if Cantata executable exists on the system
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Determine installed Cantata versionRun 'cantata --version' or check the package manager (dpkg -l cantata, rpm -qi cantata)Affected if Version is 2.3.1 or earlier
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Check if cantata-mounter service is runningRun 'ps aux | grep cantata-mounter' or check systemd service status if availableAffected if The cantata-mounter process is actively running
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Verify D-Bus policy for cantata-mounterExamine D-Bus configuration files in /etc/dbus-1/system.d/ or run 'busctl list' to check service exposureAffected if The cantata-mounter D-Bus interface is exposed without restrictive authorization policies
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Test for vulnerable path handling (if accessible)Attempt to observe if the unmount D-Bus method accepts paths with traversal sequences (e.g., ../) - this requires access to the D-Bus interfaceAffected if The D-Bus service accepts and processes unmount requests containing '..' path traversal sequences
A user is affected if Cantata version 2.3.1 or earlier is installed with the cantata-mounter D-Bus service running and accessible to unprivileged users.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement strict path canonicalization and validation in the D-Bus unmount handler to reject paths containing traversal sequences, and enforce authorization checks to ensure only privileged users can perform unmount operations.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-12560 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-12560 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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