# CVE-2023-4322: Heap-based Buffer Overflow in radareorg/radare2

> A heap-based buffer overflow in radare2 allows attackers to execute arbitrary code or cause denial of service via crafted files.

- **Severity:** High 7.3 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 14 Aug 2023
- **Updated:** 3 Jul 2025
- **Also known as:** GHSA-xfw8-r2ff-8f6m, UBUNTU-CVE-2023-4322

## What is CVE-2023-4322?

CVE-2023-4322 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 14 Aug 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.

Weakness: CWE-787 (Out-of-bounds Write), CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2023-4322?

It affects 2 products.


Products: Fedoraproject Fedora, Radare Radare2.

## How do I fix CVE-2023-4322?

Upgrade to a fixed version.

## Is CVE-2023-4322 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4322 exists.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4322 and fix it if it is affected.

What it is: CVE-2023-4322 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 14 Aug 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4322 exists.

Affected product: Fedoraproject Fedora. 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-2023-4322/ (Markdown: https://insights.sbomify.com/CVE-2023-4322/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4322
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4322
- OSV: https://osv.dev/vulnerability/CVE-2023-4322

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4322/
Summaries are generated and may contain mistakes; the official description above is the record.