MesosApplication · Apache
CVE-2017-7687
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 · uneditedWhen handling a decoding failure for a malformed URL path of an HTTP request, libprocess in Apache Mesos before 1.1.3, 1.2.x before 1.2.2, 1.3.x before 1.3.1, and 1.4.0-dev might crash because the code accidentally calls inappropriate function. A malicious actor can therefore cause a denial of service of Mesos masters rendering the Mesos-controlled cluster inoperable.
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 confidenceIn libprocess in Apache Mesos, when handling a decoding failure for a malformed URL path in an HTTP request, the code accidentally calls an inappropriate function, causing a crash. A malicious actor can send a specially crafted malformed URL path to trigger this and crash the Mesos master, resulting in denial of service.
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
MesosApplication
<= 1.1.2= 1.2.0= 1.2.1= 1.3.0= 1.3.1= 1.4.0-devCVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/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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Determine installed Mesos versionRun `mesos-master --version` or `mesos-agent --version` to get the version number, or check the package with `dpkg -l | grep mesos` (Debian) or `rpm -q mesos` (RHEL/CentOS)Affected if The version is 1.1.2 or earlier, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0-dev
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Verify Mesos master network exposureCheck the Mesos master configuration files (typically in /etc/mesos-master/) for the `--ip` or `--address` parameter, or inspect running process arguments with `ps aux | grep mesos-master`Affected if The master is bound to a non-loopback IP address or is accessible from networks other than localhost
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Confirm master is runningCheck if the mesos-master process is active using `systemctl status mesos-master` or `ps aux | grep mesos-master`Affected if The Mesos master process is currently running and accepting HTTP connections
You are affected if your Mesos version falls within the affected ranges (1.1.2 or earlier, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.4.0-dev) AND the master is network-accessible to untrusted sources.
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 dataUpgrade Apache Mesos to version 1.1.3, 1.2.2, 1.3.1, or later. As a temporary workaround, restrict network access to the Mesos master from untrusted sources.
Fix this in Mesos
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-7687 — 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-2017-7687 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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