CVE-2006-3198
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 · uneditedInteger overflow in Opera 8.54 and earlier allows remote attackers to execute arbitrary code via a JPEG image with large height and width values, which causes less memory to be allocated than intended.
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 confidenceInteger overflow in Opera 8.54 and earlier allows remote attackers to execute arbitrary code via a JPEG image with large height and width values, which causes less memory to be allocated than intended. The vulnerability occurs during JPEG image processing when the calculated memory allocation size wraps around due to integer overflow.
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<= 8.5.4CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 if Opera browser is installedCheck common installation paths: Windows default is C:\Program Files\Opera\opera.exe or C:\Program Files (x86)\Opera\opera.exe. On Linux check /usr/bin/opera or ~/.local/share/opera. On macOS check /Applications/Opera.appAffected if Opera browser is found on the system
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Determine the installed Opera version numberRun 'opera --version' from command line, or right-click opera.exe and select Properties > Details to view File VersionAffected if Version is 8.54 or earlier (8.5x versions up to and including 8.54)
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Verify JPEG image processing is enabledOpen Opera settings and check if image loading is enabled (Settings > Preferences > Advanced > Images), or test by loading any JPEG in the browserAffected if Image loading is enabled (default setting)
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Confirm JPEG handling is activeAttempt to load any JPEG image in the Opera browser, or check browser's image cache after viewing a webpage with imagesAffected if The browser successfully processes and displays JPEG images
A user is affected if Opera browser version 8.54 or earlier is installed and JPEG image processing is enabled, as the integer overflow triggers when processing specially crafted JPEG files with large dimensions.
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 dataUpgrade Opera to a version newer than 8.54, or replace Opera with a supported browser. If Opera 8.54 is required for legacy systems, consider isolating the application network-wise and restricting image processing inputs.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2006-3198 — 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-2006-3198 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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