# CVE-2022-0907: Null dereference in libtiff

> Attackers can cause a denial-of-service via a crafted TIFF file due to a null pointer dereference in libtiff's tiffcrop utility.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **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:** 11 Mar 2022
- **Updated:** 2 Aug 2024
- **Also known as:** ALPINE-CVE-2022-0907, AZL-9020, DEBIAN-CVE-2022-0907, GHSA-6q3c-x5wm-6w9c, JLSEC-2025-264, MGASA-2022-0128, UBUNTU-CVE-2022-0907

## What is CVE-2022-0907?

CVE-2022-0907 is a medium-severity vulnerability in Debian Debian Linux, published on 11 Mar 2022. 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

Unchecked Return Value to NULL Pointer Dereference in tiffcrop in libtiff 4.3.0 allows attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit f2b656e2.

Weakness: CWE-252 (Unchecked Return Value)

## Which versions are affected by CVE-2022-0907?

It affects 4 products.


Products: Debian Debian Linux, Fedoraproject Fedora, Libtiff Libtiff, Netapp Ontap Select Deploy Administration Utility.

## How do I fix CVE-2022-0907?

Apply the vendor's patch.

## Is CVE-2022-0907 being exploited?

There is no known exploitation of CVE-2022-0907 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-0907 and fix it if it is affected.

What it is: CVE-2022-0907 is a medium-severity vulnerability in Debian Debian Linux, published on 11 Mar 2022. 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: There is no known exploitation of CVE-2022-0907 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2022-0907/ (Markdown: https://insights.sbomify.com/CVE-2022-0907/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-0907
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-0907
- OSV: https://osv.dev/vulnerability/CVE-2022-0907

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-0907/
Summaries are generated and may contain mistakes; the official description above is the record.