# CVE-2013-2075: Memory corruption in chicken

> Attackers can cause a denial of service crash in Chicken Scheme by exploiting buffer overflows in specific procedures via large integer file descriptors.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 31 Oct 2019
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-9746-rx65-4fcc

## What is CVE-2013-2075?

CVE-2013-2075 is a high-severity memory corruption vulnerability in chicken, published on 31 Oct 2019. 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

Multiple buffer overflows in the (1) R5RS char-ready, (2) tcp-accept-ready, and (3) file-select procedures in Chicken through 4.8.0.3 allows attackers to cause a denial of service (crash) by opening a file descriptor with a large integer value. NOTE: this issue exists because of an incomplete fix for CVE-2012-6122.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2013-2075?

It affects 1 product.


Products: Call-Cc Chicken.

## How do I fix CVE-2013-2075?

No fix has been published for CVE-2013-2075 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-2075 being exploited?

There is no known exploitation of CVE-2013-2075 in the wild and no public exploit code.

## Other vulnerabilities in chicken

- [CVE-2022-45145](https://insights.sbomify.com/CVE-2022-45145/): Command injection in n/a (critical 9.8)
- [CVE-2014-6310](https://insights.sbomify.com/CVE-2014-6310/): Memory corruption in n/a (critical 9.8)
- [CVE-2012-6125](https://insights.sbomify.com/CVE-2012-6125/): Denial of service in chicken (critical 9.8)
- [CVE-2016-6830](https://insights.sbomify.com/CVE-2016-6830/): Memory corruption in n/a (critical 9.8)
- [CVE-2013-2024](https://insights.sbomify.com/CVE-2013-2024/): Command injection in chicken (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-2075 and fix it if it is affected.

What it is: CVE-2013-2075 is a high-severity memory corruption vulnerability in chicken, published on 31 Oct 2019. 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-2013-2075 in the wild and no public exploit code.

Affected product: chicken. 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-2013-2075/ (Markdown: https://insights.sbomify.com/CVE-2013-2075/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-2075
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-2075
- OSV: https://osv.dev/vulnerability/CVE-2013-2075

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From sbomify Insights: https://insights.sbomify.com/CVE-2013-2075/
Summaries are generated and may contain mistakes; the official description above is the record.