JreApplication · Sun

CVE-2010-0846

HIGH · 7.5 CVSS v2.0 Published 2010-04-01

Fix available

A fix is available. Upgrade to after 1.6.0 or later.

See remediation →

84/100

Remediation priority · High

Remotely reachable No privileges Zero-click

Official description

NVD · unedited

Unspecified vulnerability in the ImageIO 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 that allows remote attackers to execute arbitrary code, related to an "invalid assignment" and inconsistent length values in a JPEG image encoder (JPEGImageEncoderImpl).

Technical summary

dbcve analysis · high confidence

Heap-based buffer overflow vulnerability in Java's ImageIO JPEGImageEncoderImpl component. The flaw involves invalid assignment and inconsistent length values during JPEG encoding, allowing remote attackers to execute arbitrary code via specially crafted JPEG images.

MitigationUpgrade to a patched Java version beyond the affected releases (6u18, 5.0u23, 1.4.2_25, 1.3.1_27). For legacy systems unable to upgrade, consider disabling ImageIO processing or implementing input validation for JPEG files.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions

NVD · CPE data

JreApplication

Affected:<= 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

JdkApplication

Affected:<= 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

SdkApplication

Affected:<= 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_10

CVSS breakdown

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?

dbcve checks

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

Identify installed Java version

Run 'java -version' or 'java -fullversion' from command line. On Windows, also check registry under HKLM\SOFTWARE\JavaSoft\Java Runtime Environment for the CurrentVersion value, then check the corresponding Version key.

Affected if The reported version matches any of the affected ranges: JRE/JDK 1.6.0 and below, 1.5.0 and below, 1.4.2_25 and below, or specific versions 1.3.1_27 and below, 1.3.0_x, 1.4.2_x (where x is 1-10)
Determine Java vendor and full update version

Check the full version string including update number (for example, 1.6.0_18). Look in the Java installation directory for release files or use 'java -verbose' to get detailed version info.

Affected if The full version string falls within or below the patched releases: 1.6.0_18, 5.0u23, 1.4.2_25, or 1.3.1_27
Confirm ImageIO JPEG processing is available

Verify the Java ImageIO library is present. Check for jre/lib/rt.jar containing javax.imageio classes, or test by running code that imports javax.imageio.ImageIO.

Affected if ImageIO is a built-in module in affected Java versions and is present by default - the vulnerability applies whenever JPEG encoding occurs using this component

You are affected if you are running any Sun/Oracle Java version 1.6.0_18 or earlier, 5.0u23 or earlier, 1.4.2_25 or earlier, or 1.3.1_27 or earlier that has ImageIO available for processing JPEG images.

Generated from the published advisory. Verify against your own configuration.

Remediation

From vendor data

Upgrade available Upgrade to a release after 1.6.0

Interim mitigation

Upgrade to a patched Java version beyond the affected releases (6u18, 5.0u23, 1.4.2_25, 1.3.1_27). For legacy systems unable to upgrade, consider disabling ImageIO processing or implementing input validation for JPEG files.

Fix this in Jre Scoped from the published advisory

Consultation6.0 h
Implementation12.0 h
Testing10.0 h
Review / QA4.0 h

32.0 hours of engineering $5,580

Get the upgrade done

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Scan for this in your stack

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References

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2010-0846 in production — separate from our analysis above.

Notes0 Guidelines

Know something about CVE-2010-0846?

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

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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

At a glance

A fix existsUpgrade to after 1.6.0 or later

Severity 7.5 High

Exploit likelihood EPSS, next 30 days 6.6%

Affects: Jre

Remediation

A high-priority fix

Fix this in Jre 32 hrs · Moderate

Typical engagement from $5,580

Get a fix See the full breakdown ↓

A high-priority vulnerability. Send your environment and a specialist will scope CVE-2010-0846 and return a fixed quote and timeline.

You’ll deal with our team directly and deploy the reviewed fix to staging first — never straight to production.

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.

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.

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.

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.

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.

Check your environment

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.

Scan for this in your stack

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Practitioner notes

No notes yet

Official description

Technical summary

Affected products & versions

CVSS breakdown

Am I affected?

Remediation

References