CVE-2010-0849
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 Java 2D component in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, 1.4.2_25, and 1.3.1_27 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 a heap-based buffer overflow in a decoding routine used by the JPEGImageDecoderImpl interface, which allows code execution via a crafted JPEG image.
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 confidenceHeap-based buffer overflow in Java 2D's JPEGImageDecoderImpl decoding routine allows remote code execution via crafted JPEG images. The vulnerability is exploitable without authentication over the network.
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<= 1.3.1_27= 1.3.0= 1.3.0_01= 1.3.0_02= 1.3.0_03= 1.3.0_04= 1.3.0_05= 1.3.1<= 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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Identify installed Java versionRun 'java -version' or 'javac -version' from command line, or inspect the JAVA_HOME directory for version manifestsAffected if The reported version matches any of the affected ranges: JRE/JDK 1.6.0 or lower, 1.5.0 or lower, 1.4.2_25 or lower, 1.3.1_27 or lower, or specific 1.4.2_x/1.3.0_x versions listed in the affected products
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Check if multiple Java installations existList all Java installations on the system (common paths: /usr/lib/jvm/, C:\Program Files\Java\, or /Library/Java/JavaVirtualMachines/)Affected if Any installed Java version falls within the affected version ranges, even if a newer version is also present
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Verify Java 2D functionality is presentConfirm the jre/lib/rt.jar or equivalent runtime JAR containing JPEGImageDecoderImpl exists in the Java installationAffected if The JPEGImageDecoderImpl class exists in the Java runtime, which is present in standard Java installations and required for the vulnerability to be triggered
You are affected if any installed Sun Java runtime (JRE/JDK/SDK) version matches the affected version ranges listed for CVE-2010-0849, particularly versions 1.6.0 and lower, 1.5.0 and lower, 1.4.2_25 and lower, or 1.3.1_27 and lower.
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 affected Java installations to versions beyond the March 2010 CPU (Java 6 Update 19+, Java 5.0 Update 24+, or 1.4.2_26+). Remove or disable legacy Java browser plugins where possible.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2010-0849 — 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-2010-0849 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