# CVE-2022-34970: Memory corruption in n/a

> A heap-based buffer overflow in the Crow web framework allows remote attackers to execute arbitrary code via crafted query strings.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 4 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-h8v6-grj2-pfx5

## What is CVE-2022-34970?

CVE-2022-34970 is a critical memory corruption vulnerability in n/a, published on 4 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Crow before 1.0+4 has a heap-based buffer overflow via the function qs_parse in query_string.h. On successful exploitation this vulnerability allows attackers to remotely execute arbitrary code in the context of the vulnerable service.

Weakness: CWE-193 (Off-by-one Error)

## Which versions are affected by CVE-2022-34970?

It affects 1 product.


Products: Crowcpp Crow.

## How do I fix CVE-2022-34970?

No fix has been published for CVE-2022-34970 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34970 being exploited?

There is no known exploitation of CVE-2022-34970 in the wild and no public exploit code.

Public exploit code:

- Vulnerability in Crow prior v1.0+4 (github_poc): https://github.com/0xhebi/CVE-2022-34970

## Other vulnerabilities in n/a

- [CVE-2022-38667](https://insights.sbomify.com/CVE-2022-38667/): Use after free in n/a (critical 9.8)
- [CVE-2022-38668](https://insights.sbomify.com/CVE-2022-38668/): Information disclosure in n/a (high 7.5)
- [CVE-2023-26142](https://insights.sbomify.com/CVE-2023-26142/): Other in Crow (medium 6.5)
- [CVE-2021-23514](https://insights.sbomify.com/CVE-2021-23514/): Path Traversal (medium 6.5)
- [CVE-2021-23824](https://insights.sbomify.com/CVE-2021-23824/): Content Injection (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34970 and fix it if it is affected.

What it is: CVE-2022-34970 is a critical memory corruption vulnerability in n/a, published on 4 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-2022-34970 in the wild and no public exploit code.

Affected product: n/a. 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-2022-34970/ (Markdown: https://insights.sbomify.com/CVE-2022-34970/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34970
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34970
- OSV: https://osv.dev/vulnerability/CVE-2022-34970

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34970/
Summaries are generated and may contain mistakes; the official description above is the record.