# CVE-2023-26157: Denial of service in libredwg

> An out-of-bounds read in libredwg allows attackers to cause a denial of service via crafted DWG files.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Jan 2024
- **Updated:** 14 Nov 2024
- **Also known as:** GHSA-5rxp-9658-h93v, openSUSE-SU-2024:0147-1, openSUSE-SU-2024:13544-1

## What is CVE-2023-26157?

CVE-2023-26157 is a medium-severity denial of service vulnerability in Gnu Libredwg, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Versions of the package libredwg before 0.12.5.6384 are vulnerable to Denial of Service (DoS) due to an out-of-bounds read involving section->num_pages in decode_r2007.c.

Weakness: CWE-125 (Out-of-bounds Read), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2023-26157?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libredwg` | SUSE:Package Hub 15 SP5 | All versions | 0.12.5.6924-bp155.3.6.1 |
| `libredwg` | openSUSE:Leap 15.5 | All versions | 0.12.5.6924-bp155.3.6.1 |
| `libredwg` | openSUSE:Tumbleweed | All versions | 0.12.5.6924-1.1 |

Products: Gnu Libredwg.

## How do I fix CVE-2023-26157?

Upgrade to a fixed version.

## Is CVE-2023-26157 being exploited?

There is no known exploitation of CVE-2023-26157 in the wild and no public exploit code.

## 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-2023-26157 and fix it if it is affected.

What it is: CVE-2023-26157 is a medium-severity denial of service vulnerability in Gnu Libredwg, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-26157 in the wild and no public exploit code.

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-2023-26157/ (Markdown: https://insights.sbomify.com/CVE-2023-26157/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-26157
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-26157
- OSV: https://osv.dev/vulnerability/CVE-2023-26157

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-26157/
Summaries are generated and may contain mistakes; the official description above is the record.