CVE-2002-0988
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 · uneditedBuffer overflow in X server (Xsco) in OpenUNIX 8.0.0 and UnixWare 7.1.1, possibly related to XBM/xkbcomp capabilities.
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 confidenceBuffer overflow vulnerability in the Xsco X server component in OpenUNIX 8.0.0 and UnixWare 7.1.1, potentially in XBM or xkbcomp parsing functionality. The flaw allows remote code execution via specially crafted X bitmap data processed by the X server.
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= 7.1.1= 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/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 checksWork through these to decide whether this CVE applies to you.
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Identify operating system versionRun 'uname -a' or check /etc/release to confirm the exact OpenUNIX or UnixWare version runningAffected if The system is Caldera OpenUNIX 8.0.0 or Caldera UnixWare 7.1.1 specifically
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Locate Xsco X server componentCheck for presence of Xsco X server binaries, typically in /usr/X11R6/bin/ or /usr/bin/X11/ directory; search for files named 'Xsco' or 'X' server executablesAffected if Xsco X server binaries exist on the system
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Verify X server is runningCheck running processes for X server daemon using commands like 'ps -ef | grep X' or check /var/run for X socket filesAffected if The X server process is actively running
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Confirm XBM parsing is accessibleCheck if XBM (X BitMap) file utilities exist on the system - look for xbmtopbm, bitmap, or similar XBM-related tools in X11 bin directoriesAffected if XBM parsing utilities are installed and accessible to the X server
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Check for xkbcomp functionalityVerify xkbcomp (XKB compiler) is present on the system, typically in /usr/X11R6/bin/xkbcompAffected if xkbcomp is installed and the X server has keyboard configuration parsing enabled
A system is affected if it is running OpenUNIX 8.0.0 or UnixWare 7.1.1 with the Xsco X server enabled and XBM or xkbcomp parsing functionality available.
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 dataApply vendor patches if available; otherwise disable or remove the X server if not required, or migrate to supported operating system versions since OpenUNIX 8.0.0 and UnixWare 7.1.1 are legacy platforms.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2002-0988 — 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-2002-0988 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
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