CVE-2021-43278
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 · uneditedAn Out-of-bounds Read vulnerability exists in the OBJ file reading procedure in Open Design Alliance Drawings SDK before 2022.11. The lack of validating the input length can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
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 confidenceAn out-of-bounds read vulnerability exists in the OBJ file reading procedure of Open Design Alliance Drawings SDK versions prior to 2022.11. The lack of validating input length allows reading past the end of an allocated buffer, which an attacker can exploit to execute code in the context of the current process.
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< 2022.11CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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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Locate ODA Drawings SDK installationSearch for ODA SDK files or libraries related to Drawings SDK. Common paths include C:\Program Files\ODA\ or installation directories. Check for files named OdObjDb.h, ObjRead.cpp, or similar OBJ-processing files.Affected if The SDK is installed on the system and processes OBJ files.
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Identify installed SDK versionLook for version information in SDK documentation, about files, or version headers. Check for version.h, version.txt, or embedded version strings in DLLs/libraries.Affected if Version is below 2022.11 (e.g., 2022.10, 2022, 2021.x, etc.).
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Verify OBJ file processing is in useCheck application logs, configurations, or code that invokes the OBJ file reading functions (OdObj or similar OBJ handling modules). Examine if the application accepts or loads .obj model files.Affected if Application processes OBJ files using the vulnerable SDK code path.
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Check for known malicious OBJ filesReview recent or untrusted OBJ files loaded by systems using the ODA SDK. Inspect file headers for anomalies if files are accessible.Affected if A specially crafted OBJ file has been processed by the vulnerable SDK.
The environment is affected if Open Design Alliance Drawings SDK version below 2022.11 is installed and applications using it process OBJ files.
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.
dbcve · scoped2022.11
Upgrade to Open Design Alliance Drawings SDK version 2022.11 or later to obtain the patch for this vulnerability.
2022.11
- 1. Identify all deployments of Open Design Alliance Drawings SDK versions prior to 2022.11 in your environment
- 2. Obtain the Drawings SDK version 2022.11 or later from the official Open Design Alliance source (www.opendesign.com)
- 3. Review the SDK release notes for version 2022.11 to understand any API changes or migration requirements
- 4. Update your project's dependency configuration to reference the new SDK version
- 5. Rebuild and test your application to ensure compatibility with the upgraded SDK
- 6. Deploy the updated application to replace vulnerable installations
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-43278 — 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-2021-43278 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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