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Vm VirtualboxApplication · Oracle

CVE-2018-3294

CRITICAL · 9.0 CVSS v3.0 Published 2018-10-17
Fix available
A fix is available. Upgrade to 5.2.20 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Patch available

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
Vulnerability in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core). The supported version that is affected is Prior to 5.2.20. Easily exploitable vulnerability allows low privileged attacker with network access via VRDP to compromise Oracle VM VirtualBox. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.0 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).

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

A detailed technical summary for this CVE is being prepared.

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
Vm VirtualboxApplication
Affected:< 5.2.20

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
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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.

dbcve · scoped
Upgrade available Upgrade to 5.2.20 or later
Fixed in 5.2.20
Vendor patch www.oracle.com →
Recommended fix High confidence

5.2.20

  1. 1. Back up any important virtual machines and their configurations before proceeding with the update.
  2. 2. Ensure all running virtual machines are powered off and closed properly.
  3. 3. Download VirtualBox version 5.2.20 or later from the official VirtualBox website (https://www.virtualbox.org/wiki/Downloads).
  4. 4. Install the downloaded VirtualBox package using standard installation procedures for your operating system.
  5. 5. After installation, verify the installed version by checking VirtualBox > Help > About VirtualBox to confirm the version is 5.2.20 or higher.
  6. 6. If using VRDP (VirtualBox Remote Display), ensure VRDP authentication is properly configured with strong credentials after the update.
Caveat VirtualBox upgrades may require stopping running VMs; ensure workloads are scheduled for maintenance window

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $2,300. Get the upgrade done

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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-2018-3294 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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