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XpdfApplication · Xpdfreader

CVE-2018-8100

HIGH · 7.8 CVSS v3.0 Published 2018-03-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
81/100
Remediation priority · High
No privileges

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 JPXStream::readTilePart function in JPXStream.cc in xpdf 4.00 allows attackers to launch denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a specific pdf file, as demonstrated by pdftohtml.

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

Heap-based buffer overflow in JPXStream::readTilePart function in JPXStream.cc of xpdf 4.00 allows denial of service or potentially other impact via a specially crafted PDF file containing malformed JPEG2000 (JPX) stream data.

MitigationApply vendor patch or update to a fixed version of xpdf. Avoid processing untrusted PDF files with vulnerable xpdf utilities like pdftohtml until patched.

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
XpdfApplication
Affected:= 4.00

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
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Work through these to decide whether this CVE applies to you.

  1. Identify if xpdf is installed
    Run 'which xpdf' or 'dpkg -l | grep xpdf' on Linux, or check Program Files on Windows for xpdf installation
    Affected if xpdf executable is present on the system
  2. Determine the installed xpdf version
    Run 'xpdf -v' or 'xpdf -version' to display the version number
    Affected if The version displayed is exactly 4.00
  3. Check for vulnerable JPXStream component
    Locate JPXStream.cc file in the xpdf source or binary distribution - the vulnerable function readTilePart exists in this file
    Affected if The JPXStream.cc file contains the readTilePart function from xpdf 4.00 source
  4. Determine if processing of PDF files is possible
    Attempt to open any PDF file using xpdf utilities such as pdftohtml, pdftotext, or the xpdf viewer itself
    Affected if The system can process PDF files using xpdf tools and the version is 4.00

The environment is affected if xpdf version 4.00 is installed and can be used to process PDF files containing JPEG2000 (JPX) stream data.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patch or update to a fixed version of xpdf. Avoid processing untrusted PDF files with vulnerable xpdf utilities like pdftohtml until patched.

Fix this in Xpdf Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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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-2018-8100 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