# CVE-2020-13497: Memory corruption in Pixar

> An attacker can trigger out-of-bounds memory access in Pixar OpenUSD by providing a malformed file, potentially bypassing mitigations and aiding further exploitation.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-4j7x-9959-phm5

## What is CVE-2020-13497?

CVE-2020-13497 is a medium-severity memory corruption vulnerability in Pixar, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An exploitable vulnerability exists in the way Pixar OpenUSD 20.05 handles parses certain encoded types. A specially crafted malformed file can trigger an arbitrary out of bounds memory access in String Type Index. This vulnerability could be used to bypass mitigations and aid further exploitation. To trigger this vulnerability, the victim needs to access an attacker-provided malformed file.

Weakness: CWE-125 (Out-of-bounds Read), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2020-13497?

It affects 1 product.


Products: Pixar Openusd.

## How do I fix CVE-2020-13497?

No fix has been published for CVE-2020-13497 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-13497 being exploited?

There is no known exploitation of CVE-2020-13497 in the wild and no public exploit code.

## Other vulnerabilities in Pixar

- [CVE-2020-13531](https://insights.sbomify.com/CVE-2020-13531/): Use after free in Pixar (high 8.8)
- [CVE-2020-13493](https://insights.sbomify.com/CVE-2020-13493/): Memory corruption in Pixar (high 8.8)
- [CVE-2020-6148](https://insights.sbomify.com/CVE-2020-6148/): Memory corruption in Pixar (high 8.8)
- [CVE-2020-6149](https://insights.sbomify.com/CVE-2020-6149/): Memory corruption in Pixar (high 8.8)
- [CVE-2020-6150](https://insights.sbomify.com/CVE-2020-6150/): Memory corruption in Pixar (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-13497 and fix it if it is affected.

What it is: CVE-2020-13497 is a medium-severity memory corruption vulnerability in Pixar, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-13497 in the wild and no public exploit code.

Affected product: Pixar. 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-2020-13497/ (Markdown: https://insights.sbomify.com/CVE-2020-13497/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-13497
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-13497
- OSV: https://osv.dev/vulnerability/CVE-2020-13497

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-13497/
Summaries are generated and may contain mistakes; the official description above is the record.