CVE-2009-2295
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 · uneditedMultiple integer overflows in CamlImages 2.2 and earlier might allow context-dependent attackers to execute arbitrary code via a crafted PNG image with large width and height values that trigger a heap-based buffer overflow in the (1) read_png_file or (2) read_png_file_as_rgb24 function.
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 confidenceMultiple integer overflows in CamlImages 2.2 and earlier allow context-dependent attackers to execute arbitrary code via crafted PNG images with large width and height values that trigger heap-based buffer overflows in the read_png_file and read_png_file_as_rgb24 functions.
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<= 2.2CVSS 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 CamlImages library is installedCheck for CamlImages package using your system's package manager (e.g., dpkg -l | grep camlimages, rpm -qa | grep camlimages, or opam list camlimages for OCaml users)Affected if CamlImages version 2.2 or earlier is installed
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Determine the exact installed versionRun the version check command from the previous step to obtain the precise version number, then compare it to the affected range (<= 2.2)Affected if The installed version is 2.2 or any version earlier than 2.2
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Verify PNG processing capability is presentCheck if the PNG support module (read_png_file, read_png_file_as_rgb24) exists in the CamlImages installation by examining the library files (typically in /usr/lib/ocaml/camlimages/ or the opam prefix directory)Affected if PNG support is compiled and available in the installation
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Identify applications or code using CamlImages PNG functionsSearch for applications, scripts, or code that import or use the CamlImages library for PNG processing (grep for 'camlimages' or 'read_png' in application source code, or check installed binaries that link against libcamlimages)Affected if Any application or service processes PNG files using CamlImages functions without additional input validation on width/height values
The environment is affected if CamlImages version 2.2 or earlier is installed AND PNG image processing via read_png_file or read_png_file_as_rgb24 functions is in use.
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 CamlImages to a patched version if available; otherwise, implement proper bounds checking on PNG width and height values before buffer allocation to prevent integer overflow-induced heap overflows.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-2295 — 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-2009-2295 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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