CVE-2017-2813
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 · uneditedAn exploitable integer overflow vulnerability exists in the JPEG 2000 parser functionality of IrfanView 4.44. A specially crafted jpeg2000 image can cause an integer overflow leading to wrong memory allocation resulting in arbitrary code execution. Vulnerability can be triggered by viewing the image in via the application or by using thumbnailing feature of IrfanView.
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 confidenceAn integer overflow vulnerability exists in the JPEG 2000 parser of IrfanView 4.44. When parsing a specially crafted JPEG2000 image, the integer overflow causes incorrect memory allocation size calculation, leading to buffer overflow conditions that can be exploited for arbitrary code execution.
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= 4.44CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check IrfanView installationOpen Windows Start menu, search for 'IrfanView', right-click and select 'Properties', or run 'irfanview' from command line and check the version displayed in the title barAffected if Version shown is 4.44 exactly
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Locate IrfanView program fileCommon installation paths are C:\Program Files\IrfanView\i_view32.exe or C:\Program Files (x86)\IrfanView\i_view32.exe. Verify the file exists using File ExplorerAffected if i_view32.exe version is 4.44 (right-click file, select Properties, look at Details tab for version info)
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Check for JPEG 2000 pluginLook for file 'JP2.dll' in the IrfanView plugins folder, typically located at C:\Program Files\IrfanView\Plugins\ or C:\Program Files (x86)\IrfanView\Plugins\Affected if JP2.dll exists in the plugins folder, indicating JPEG 2000 parsing capability is present
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Verify JPEG 2000 file association or usageCheck if IrfanView is configured to automatically open or generate thumbnails for .jp2 or .j2k files. Look in IrfanView under Options > Properties/Settings for file associations or thumbnail settingsAffected if IrfranView is set to handle, preview, or generate thumbnails for JPEG 2000 files (.jp2, .j2k, .jpx)
Environment is affected if IrfanView version 4.44 is installed with the JPEG 2000 plugin (JP2.dll) present and configured to process JPEG 2000 images.
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 dataUpdate IrfanView to a patched version if available. Until then, avoid opening untrusted JPEG2000 images and disable automatic thumbnail generation for unknown sources.
- Consultation3.0 h
- Implementation6.0 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-2017-2813 — 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-2017-2813 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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