CVE-2018-8049
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 Stealth endpoint in Unisys Stealth SVG 2.8.x, 3.0.x before 3.0.1999, 3.1.x, 3.2.x before 3.2.030, and 3.3.x before 3.3.016, when running on Linux and AIX, allows remote attackers to cause a denial of service (crash) via crafted packets.
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 confidenceThe Stealth endpoint in Unisys Stealth SVG versions 2.8.x, 3.0.x before 3.0.1999, 3.1.x, 3.2.x before 3.2.030, and 3.3.x before 3.3.016 running on Linux and AIX platforms contains a vulnerability that allows remote attackers to crash the service via specially crafted network packets.
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>= 3.0, < 3.0.1999>= 3.2, < 3.2.030>= 3.3, < 3.3.016= 2.8CVSS 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.
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Verify Unisys Stealth SVG is installedCheck for the presence of Unisys Stealth software on the system. Common locations include /opt/unisys/stealth or check for stealth-related processes using 'ps aux | grep -i stealth' or 'lsnode -a' on AIX.Affected if The software is not found or no stealth processes are running.
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Identify the installed versionRun the command to check the Stealth version, typically found in a version file or via a stealth-specific command. Common paths include /opt/unisys/stealth/version or check the Stealth service banner.Affected if The version cannot be determined or the software is not installed.
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Compare version against affected rangesMatch the installed version number to the affected ranges: 2.8.x (all), 3.0.x before 3.0.1999, 3.1.x (all), 3.2.x before 3.2.030, 3.3.x before 3.3.016.Affected if The installed version falls within any of these vulnerable ranges.
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Confirm platform is Linux or AIXRun 'uname -a' or 'oslevel' (AIX) to identify the operating system. This vulnerability only affects Linux and AIX platforms.Affected if The platform is Linux or AIX AND the version is in the affected ranges.
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Check if Stealth endpoint is network accessibleReview network configuration and firewall rules to determine if the Stealth service port is exposed to network access. Check for listening ports related to stealth using 'netstat -anp' or 'ss -tulpn'.Affected if The Stealth service is network-accessible and the version/platform conditions are met.
You are affected if Unisys Stealth SVG is installed on Linux or AIX with a version in the 2.8.x, 3.0.x (<3.0.1999), 3.1.x, 3.2.x (<3.2.030), or 3.3.x (<3.3.016) ranges and the service is network-accessible.
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 data3.0.19993.2.0303.3.016
Apply the vendor patches: upgrade to version 3.0.1999 or later for 3.0.x, 3.2.030 or later for 3.2.x, and 3.3.016 or later for 3.3.x. Consider network segmentation or firewall rules to limit exposure to untrusted networks until patching is completed.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-8049 — 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-2018-8049 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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- 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
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