# CVE-2022-2831: Integer overflow in Blender

> An integer overflow in Blender's thumbnail extraction can cause crashes or memory corruption, potentially allowing code execution.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** CLEANSTART-2024-AJ31493, DEBIAN-CVE-2022-2831, GHSA-96cr-xqmm-9cj3, UBUNTU-CVE-2022-2831

## What is CVE-2022-2831?

CVE-2022-2831 is a high-severity vulnerability in Blender, published on 16 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A flaw was found in Blender 3.3.0. An interger overflow in source/blender/blendthumb/src/blendthumb_extract.cc may lead to program crash or memory corruption.

Weakness: CWE-787 (Out-of-bounds Write), CWE-125 (Out-of-bounds Read), CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2022-2831?

It affects 1 product.


Products: Blender Blender.

## How do I fix CVE-2022-2831?

Upgrade to a fixed version.

## Is CVE-2022-2831 being exploited?

There is no known exploitation of CVE-2022-2831 in the wild and no public exploit code.

## Other vulnerabilities in Blender

- [CVE-2009-3850](https://insights.sbomify.com/CVE-2009-3850/): Code injection in n/a (critical 9.3)
- [CVE-2007-1253](https://insights.sbomify.com/CVE-2007-1253/): Code injection in n/a (critical 9.3)
- [CVE-2017-12081](https://insights.sbomify.com/CVE-2017-12081/): Integer overflow in Blender (high 8.8)
- [CVE-2017-12082](https://insights.sbomify.com/CVE-2017-12082/): Integer overflow in Blender (high 8.8)
- [CVE-2017-12086](https://insights.sbomify.com/CVE-2017-12086/): Integer overflow in Blender (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2831 and fix it if it is affected.

What it is: CVE-2022-2831 is a high-severity vulnerability in Blender, published on 16 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-2831 in the wild and no public exploit code.

Affected product: Blender. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-2831/ (Markdown: https://insights.sbomify.com/CVE-2022-2831/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2831
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2831
- OSV: https://osv.dev/vulnerability/CVE-2022-2831

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2831/
Summaries are generated and may contain mistakes; the official description above is the record.