CVE-2010-0841
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 · uneditedUnspecified vulnerability in the ImageIO component in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, and 1.4.2_25 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors. NOTE: the previous information was obtained from the March 2010 CPU. Oracle has not commented on claims from a reliable researcher that this is an integer overflow in the Java Runtime Environment that allows remote attackers to execute arbitrary code via a JPEG image that contains subsample dimensions with large values, related to JPEGImageReader and "stepX".
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 vulnerability in Java Runtime Environment's JPEGImageReader component allows remote attackers to execute arbitrary code via specially crafted JPEG images containing large subsample dimensions (stepX). This affects Java versions 6 Update 18, 5.0 Update 23, and 1.4.2_25.
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<= 1.6.0= 1.6.0<= 1.5.0= 1.5.0<= 1.4.2_25= 1.4.2= 1.4.2_1= 1.4.2_2= 1.4.2_3= 1.4.2_4= 1.4.2_5= 1.4.2_6<= 1.6.0= 1.6.0<= 1.5.0= 1.5.0<= 1.4.2_25= 1.4.2= 1.4.2_1= 1.4.2_02= 1.4.2_3= 1.4.2_4= 1.4.2_5= 1.4.2_6= 1.4.2_7= 1.4.2_8= 1.4.2_9= 1.4.2_10CVSS 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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Determine Java version installedRun 'java -version' from command line, or check registry on Windows (HKLM\Software\JavaSoft\Java Runtime Environment), or check /usr/java or /opt/java directories on Linux/Unix systemsAffected if Version is 1.6.0 any update through Update 18, 1.5.0 any update through Update 23, or 1.4.2 through 1.4.2_25
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Identify if Java is using ImageIO with JPEG supportVerify the jre/lib/rt.jar contains the JPEGImageReader class (com.sun.imageio.plugins.jpeg.JPEGImageReader), which is included by default in standard Java installationsAffected if Java's ImageIO with JPEG decoding capability is present and operational
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Confirm Java browser plugin is enabledCheck browser plugin settings: on Windows check for npappl.dll in browser addons, on Linux check for libjavaplugin.so in browser plugin directories; examine browser's plugins or add-ons list for Java entriesAffected if Java browser plugin is enabled and can process remote JPEG images through web pages
System is affected if installed Java version is 1.6.0 through 1.6.0_18, 1.5.0 through 1.5.0_23, or 1.4.2 through 1.4.2_25 AND Java's ImageIO functionality (with JPEGImageReader) is available, particularly if the browser plugin is active.
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 the March 2010 CPU patch or update to a newer Java version to address the integer overflow in ImageIO's JPEGImageReader. Consider disabling the Java browser plugin until patches are applied.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,416.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2010-0841 — 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 sources- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- www.vupen.com
- www.vupen.com
- www.vupen.com
- www.vupen.com
- itrc.hp.com
- lists.apple.com
- lists.apple.com
- lists.opensuse.org
- lists.opensuse.org
- marc.info
- marc.info
- support.apple.com
- support.apple.com
- www.oracle.com
- www.oracle.com
- www.redhat.com
- www.redhat.com
- www.redhat.com
- www.redhat.com
- www.redhat.com
- www.securityfocus.com
- www.securityfocus.com
- www.securityfocus.com
- www.vmware.com
- www.vmware.com
- www.zerodayinitiative.com
- oval.cisecurity.org
- nvd.nist.gov
Practitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2010-0841 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
- No spam, self-promotion, credentials, or personal data