# CVE-2023-26768: Memory corruption in n/a

> A buffer overflow in Liblouis allows remote attackers to cause a denial of service via specific translation table functions.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Mar 2023
- **Updated:** 26 Feb 2025
- **Also known as:** AZL-25653, CLSA-2025-1745427668, DEBIAN-CVE-2023-26768, GHSA-f9h6-j58j-7972, SUSE-SU-2023:1828-1, SUSE-SU-2023:1829-1, SUSE-SU-2023:1854-1, UBUNTU-CVE-2023-26768

## What is CVE-2023-26768?

CVE-2023-26768 is a high-severity memory corruption vulnerability in n/a, published on 16 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to cause a denial of service via the compileTranslationTable.c and lou_setDataPath functions.

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

## Which versions are affected by CVE-2023-26768?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `liblouis` | SUSE:Enterprise Storage 7 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Enterprise Storage 7.1 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 3.3.0-150000.4.16.1 |
| `liblouis` | SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | All versions | 3.20.0-150400.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Real Time 15 SP3 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 3.3.0-150000.4.16.1 |
| `liblouis` | SUSE:Linux Enterprise Server 15 SP2-LTSS | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Server 15 SP3-LTSS | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | All versions | 3.3.0-150000.4.16.1 |
| `liblouis` | SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | openSUSE:Leap 15.4 | All versions | 3.11.0-150200.3.13.1 |
| `liblouis` | openSUSE:Leap 15.4 | All versions | 3.20.0-150400.3.13.1 |
| `liblouis` | openSUSE:Leap 15.4 | All versions | 3.3.0-150000.4.16.1 |

Products: Liblouis Liblouis.

## How do I fix CVE-2023-26768?

Upgrade to a fixed version.

## Is CVE-2023-26768 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26768 exists.

## Other vulnerabilities in n/a

- [CVE-2017-13738](https://insights.sbomify.com/CVE-2017-13738/): Memory corruption in n/a (high 8.8)
- [CVE-2017-13739](https://insights.sbomify.com/CVE-2017-13739/): Memory corruption in n/a (high 8.8)
- [CVE-2017-13740](https://insights.sbomify.com/CVE-2017-13740/): Memory corruption in n/a (high 8.8)
- [CVE-2014-8184](https://insights.sbomify.com/CVE-2014-8184/): Memory corruption in liblouis (high 7.8)
- [CVE-2017-15101](https://insights.sbomify.com/CVE-2017-15101/): Memory corruption in liblouis (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-26768 and fix it if it is affected.

What it is: CVE-2023-26768 is a high-severity memory corruption vulnerability in n/a, published on 16 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26768 exists.

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-2023-26768/ (Markdown: https://insights.sbomify.com/CVE-2023-26768/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-26768
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-26768
- OSV: https://osv.dev/vulnerability/CVE-2023-26768

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-26768/
Summaries are generated and may contain mistakes; the official description above is the record.