# CVE-2023-25222: Memory corruption in n/a

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

- **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:** 1 Mar 2023
- **Updated:** 7 Mar 2025
- **Also known as:** GHSA-wrhc-5xmp-hp3p

## What is CVE-2023-25222?

CVE-2023-25222 is a high-severity memory corruption vulnerability in Gnu Libredwg, published on 1 Mar 2023. 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

A heap-based buffer overflow vulnerability exits in GNU LibreDWG v0.12.5 via the bit_read_RC function at bits.c.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-25222?

It affects 1 product.


Products: Gnu Libredwg.

## How do I fix CVE-2023-25222?

No fix has been published for CVE-2023-25222 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-25222 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-25222 exists.

## Other vulnerabilities in Gnu Libredwg

- [CVE-2022-35164](https://insights.sbomify.com/CVE-2022-35164/): Use after free in n/a (critical 9.8)
- [CVE-2021-28237](https://insights.sbomify.com/CVE-2021-28237/): Memory corruption in n/a (critical 9.8)
- [CVE-2019-20914](https://insights.sbomify.com/CVE-2019-20914/): Null dereference in n/a (critical 9.8)
- [CVE-2019-9774](https://insights.sbomify.com/CVE-2019-9774/): Memory corruption in n/a (critical 9.1)
- [CVE-2019-9775](https://insights.sbomify.com/CVE-2019-9775/): Information disclosure in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-25222 and fix it if it is affected.

What it is: CVE-2023-25222 is a high-severity memory corruption vulnerability in Gnu Libredwg, published on 1 Mar 2023. An attacker can exploit it over the internet without logging in, 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-2023-25222 exists.

Affected product: Gnu Libredwg. 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-2023-25222/ (Markdown: https://insights.sbomify.com/CVE-2023-25222/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-25222
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-25222
- OSV: https://osv.dev/vulnerability/CVE-2023-25222

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-25222/
Summaries are generated and may contain mistakes; the official description above is the record.