dbcve.org
OpensshApplication · OpenBSD

CVE-2014-1692

HIGH · 7.3 CVSS v3.1 Published 2014-01-29
Fix available
A fix is available. Upgrade to after 6.4 or later.
See remediation →
82/100
Remediation priority · High
Remotely reachable 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
The hash_buffer function in schnorr.c in OpenSSH through 6.4, when Makefile.inc is modified to enable the J-PAKE protocol, does not initialize certain data structures, which might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via vectors that trigger an error condition.

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

OpenSSH contains an uninitialized memory vulnerability in the hash_buffer function in schnorr.c. When the J-PAKE protocol is enabled through Makefile.inc modification, certain data structures are not properly initialized, allowing remote attackers to cause memory corruption or denial of service via vectors that trigger an error condition.

MitigationIf J-PAKE protocol is not required, ensure it remains disabled in Makefile.inc. Otherwise, upgrade to an OpenSSH version past 6.4 that contains the security patch for this vulnerability.

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
OpensshApplication
Affected:<= 6.4

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

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. Determine installed OpenSSH version
    Run 'ssh -V' or check the OpenSSH version through your package manager or binary
    Affected if Version is 6.4 or lower on OpenBSD
  2. Locate the Makefile.inc configuration file
    Find the Makefile.inc file used during OpenSSH compilation, typically in the source directory or build tree
    Affected if File exists and was modified to enable J-PAKE protocol support
  3. Verify if J-PAKE is enabled in Makefile.inc
    Search the Makefile.inc file for configuration options related to J-PAKE or schnorr.c inclusion
    Affected if J-PAKE or ENABLE_JPAKE is explicitly set to enabled or defined

You are affected if your OpenSSH version is 6.4 or lower AND J-PAKE protocol support was explicitly enabled in your Makefile.inc during compilation.

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
Upgrade available Upgrade to a release after 6.4
Interim mitigation

If J-PAKE protocol is not required, ensure it remains disabled in Makefile.inc. Otherwise, upgrade to an OpenSSH version past 6.4 that contains the security patch for this vulnerability.

Fix this in Openssh Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.

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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-2014-1692 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data