CVE-2012-4429
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 · uneditedVino 2.28, 2.32, 3.4.2, and earlier allows remote attackers to read clipboard activity by listening on TCP port 5900.
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 · moderate confidenceVino VNC server versions 2.28, 2.32, 3.4.2 and earlier contains an information disclosure vulnerability where remote attackers can read clipboard activity by listening on TCP port 5900. This allows unauthenticated remote attackers to capture clipboard contents transmitted over the VNC connection.
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<= 3.4.2= 0.12= 0.14= 2.7= 2.7.3= 2.7.3.1= 2.7.4= 2.7.90= 2.7.91= 2.7.92= 2.8= 2.8.0CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/A:N
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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Verify if Vino VNC server is installedCheck for the vino-server process: ps aux | grep vino or check for package: dpkg -l | grep vino (Debian) or rpm -qa | grep vino (RHEL)Affected if Vino server is installed and running on the system
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Determine installed Vino versionRun: vino-server --version or check package version with dpkg -l vino or rpm -qi vinoAffected if Version matches <= 3.4.2, or equals 0.12, 0.14, 2.7, 2.7.3, 2.7.3.1, 2.7.4, 2.7.90, 2.7.91, 2.7.92, 2.8, 2.8.0, 2.28, or 2.32
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Confirm VNC server is listening on port 5900Run: netstat -tlnp | grep 5900 or ss -tlnp | grep 5900 to check if VNC service is bound to TCP port 5900Affected if VNC server is actively listening on port 5900
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Verify clipboard sharing is enabled in Vino configurationCheck gsettings or dconf for Vino preferences: gsettings get org.gnome.Vino clipboard-sharing or examine ~/.gconf/desktop/gnome/remote-display/clipboard_sharing_keyAffected if Clipboard sharing is enabled (value is true)
System is affected if Vino VNC server version is one of the vulnerable versions listed AND is running with clipboard sharing enabled and accessible on TCP port 5900.
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 dataRestrict network access to port 5900 via firewall rules or ACLs, disable clipboard sharing in Vino configuration, or upgrade to a patched version if available.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-4429 — 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-2012-4429 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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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