# CVE-2023-35790: Integer overflow in n/a

> An integer underflow in libjxl patch decoding allows attackers to cause a denial of service via infinite loops.

- **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 Jun 2023
- **Updated:** 17 Dec 2024
- **Also known as:** DEBIAN-CVE-2023-35790, GHSA-c693-jh58-c8cm, UBUNTU-CVE-2023-35790, openSUSE-SU-2023:0161-1

## What is CVE-2023-35790?

CVE-2023-35790 is a high-severity vulnerability in n/a, published on 16 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in dec_patch_dictionary.cc in libjxl before 0.8.2. An integer underflow in patch decoding can lead to a denial of service, such as an infinite loop.

Weakness: CWE-191 (Integer Underflow (Wrap or Wraparound))

## Which versions are affected by CVE-2023-35790?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libjxl` | SUSE:Package Hub 15 SP5 | All versions | 0.8.2-bp155.2.3.1 |
| `libjxl` | openSUSE:Leap 15.5 | All versions | 0.8.2-bp155.2.3.1 |

Products: Libjxl Project Libjxl.

## How do I fix CVE-2023-35790?

Upgrade to a fixed version.

## Is CVE-2023-35790 being exploited?

There is no known exploitation of CVE-2023-35790 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-27804](https://insights.sbomify.com/CVE-2021-27804/): Memory corruption in n/a (critical 9.8)
- [CVE-2026-1837](https://insights.sbomify.com/CVE-2026-1837/): libjxl: Out-of-bounds write in grayscale color transformation when using LCMS2 (high 8.7)
- [CVE-2021-36691](https://insights.sbomify.com/CVE-2021-36691/): Denial of service in n/a (high 7.5)
- [CVE-2024-11403](https://insights.sbomify.com/CVE-2024-11403/): Out of Bounds Memory Read/Write in libjxl (medium 6.9)
- [CVE-2024-11498](https://insights.sbomify.com/CVE-2024-11498/): Resource exhaustion via Stack overflow in libjxl (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35790 and fix it if it is affected.

What it is: CVE-2023-35790 is a high-severity vulnerability in n/a, published on 16 Jun 2023. 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-2023-35790 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-2023-35790/ (Markdown: https://insights.sbomify.com/CVE-2023-35790/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35790
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35790
- OSV: https://osv.dev/vulnerability/CVE-2023-35790

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-35790/
Summaries are generated and may contain mistakes; the official description above is the record.