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JunosOperating system · Juniper

CVE-2014-6385

MEDIUM · 6.1 CVSS v2.0 Published 2015-01-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
66/100
Remediation priority · Elevated
No privileges 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
Juniper Junos 11.4 before 11.4R13, 12.1X44 before 12.1X44-D45, 12.1X46 before 12.1X46-D30, 12.1X47 before 12.1X47-D15, 12.2 before 12.2R9, 12.3R7 before 12.3R7-S1, 12.3 before 12.3R8, 13.1 before 13.1R5, 13.2 before 13.2R6, 13.3 before 13.3R4, 14.1 before 14.1R2, and 14.2 before 14.2R1 allows remote attackers to cause a denial of service (kernel crash and restart) via a crafted fragmented OSPFv3 packet with an IPsec Authentication Header (AH).

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 confidence

A vulnerability in Juniper Junos allows remote attackers to cause denial of service by sending crafted fragmented OSPFv3 packets with an IPsec Authentication Header (AH), which triggers a kernel crash and subsequent device restart.

MitigationUpdate Junos to the patched versions (11.4R13, 12.1X44-D45, 12.1X46-D30, 12.1X47-D15, 12.2R9, 12.3R8/12.3R7-S1, 13.1R5, 13.2R6, 13.3R4, 14.1R2, or 14.2R1 depending on the branch).

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
JunosOperating system
Affected:= 11.4= 12.1x44= 12.1x46= 12.1x47= 12.2= 12.3= 13.1= 13.2= 13.3= 14.1= 14.2

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
Adjacent
Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:A/AC:L/Au:N/C:N/I:N/A:C

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. Check Junos version
    Run 'show version' or 'request system version' to obtain the installed Junos version
    Affected if The installed version matches one of the affected versions: 11.4, 12.1x44, 12.1x46, 12.1x47, 12.2, 12.3, 13.1, 13.2, 13.3, 14.1, or 14.2
  2. Verify OSPFv3 is configured
    Run 'show configuration protocols ospf3' to check if OSPFv3 is enabled on any interface
    Affected if OSPFv3 is configured and active on the device
  3. Confirm IPsec AH is in use with OSPFv3
    Run 'show configuration security ipsec' and 'show configuration protocols ospf3 area' to check for authentication header configuration under OSPFv3 security settings
    Affected if IPsec Authentication Header (AH) is configured for OSPFv3 traffic

The device is affected if it runs an affected Junos version AND has OSPFv3 configured with IPsec AH protection, as the vulnerability is triggered by crafted fragmented OSPFv3 packets with IPsec AH.

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

Update Junos to the patched versions (11.4R13, 12.1X44-D45, 12.1X46-D30, 12.1X47-D15, 12.2R9, 12.3R8/12.3R7-S1, 13.1R5, 13.2R6, 13.3R4, 14.1R2, or 14.2R1 depending on the branch).

Fix this in Junos Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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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-2014-6385 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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