CVE-2018-0032
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 · uneditedThe receipt of a crafted BGP UPDATE can lead to a routing process daemon (RPD) crash and restart. Repeated receipt of the same crafted BGP UPDATE can result in an extended denial of service condition for the device. This issue only affects the specific versions of Junos OS listed within this advisory. Earlier releases are unaffected by this vulnerability. This crafted BGP UPDATE does not propagate to other BGP peers. Affected releases are Juniper Networks Junos OS: 16.1X65 versions prior to 16.1X65-D47; 17.2X75 versions prior to 17.2X75-D91, 17.2X75-D110; 17.3 versions prior to 17.3R1-S4, 17.3R2; 17.4 versions prior to 17.4R1-S3, 17.4R2.
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 confidenceA vulnerability in specific Junos OS versions allows a crafted BGP UPDATE message to crash the routing process daemon (rpd), causing a denial of service. Repeated receipt of the same malformed UPDATE leads to repeated crashes, creating an extended DoS condition. The crafted message does not propagate to other BGP peers, limiting the impact to the local device.
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= 16.1x65= 17.2x75= 17.3= 17.4CVSS 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.
-
Check installed Junos OS versionExecute 'show version' or 'show version detail' via CLI to retrieve the exact Junos version running on the deviceAffected if The displayed version matches 16.1X65, 17.2X75, 17.3, or 17.4 (without the fixed sub-versions listed in the mitigation)
-
Verify BGP is configuredExecute 'show configuration protocols bgp' to see if BGP protocol is configuredAffected if BGP is actively configured and the device has BGP neighbors defined
-
Confirm BGP neighbor relationships are activeExecute 'show bgp summary' or 'show bgp neighbor' to check if BGP sessions are establishedAffected if One or more BGP peers show as Established, meaning the device is accepting BGP UPDATE messages from remote neighbors
-
Check for rpd crash historyExecute 'show system core-dumps' or review /var/log/messages for rpd crash indicatorsAffected if Recent rpd process crashes are logged, which could indicate exploitation attempts
A device is affected if it runs a vulnerable Junos version (16.1X65, 17.2X75, 17.3, or 17.4) AND has active BGP peers accepting UPDATE messages, allowing a remote attacker to send malformed BGP updates causing repeated rpd crashes.
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 Junos OS to the specified patched versions (16.1X65-D47 or later, 17.2X75-D91/D110 or later, 17.3R1-S4/17.3R2 or later, 17.4R1-S3/17.4R2 or later) for affected platforms. Consider implementing BGP route filtering and prefix validation as an additional safeguard.
- Consultation4.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,680.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-0032 — 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-2018-0032 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data