# CVE-2022-32745: Null dereference in samba

> Samba AD users can trigger a segmentation fault via LDAP requests, causing a denial of service.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:** Yes
- **Published:** 25 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** ALPINE-CVE-2022-32745, AZL-44790, DEBIAN-CVE-2022-32745, ECHO-9f43-b0b4-b84f, GHSA-q9mh-p233-5pvv, UBUNTU-CVE-2022-32745

## What is CVE-2022-32745?

CVE-2022-32745 is a high-severity vulnerability in Samba Samba, published on 25 Aug 2022. 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 flaw was found in Samba. Samba AD users can cause the server to access uninitialized data with an LDAP add or modify the request, usually resulting in a segmentation fault.

Weakness: CWE-908 (Use of Uninitialized Resource), CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2022-32745?

It affects 1 product.


Products: Samba Samba.

## How do I fix CVE-2022-32745?

Apply the vendor's patch.

## Is CVE-2022-32745 being exploited?

There is no known exploitation of CVE-2022-32745 in the wild and no public exploit code.

## Other vulnerabilities in Samba Samba

- [CVE-2012-1182](https://insights.sbomify.com/CVE-2012-1182/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-2446](https://insights.sbomify.com/CVE-2007-2446/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0600](https://insights.sbomify.com/CVE-2004-0600/): Memory corruption in n/a (critical 10.0)
- [CVE-1999-0810](https://insights.sbomify.com/CVE-1999-0810/): Denial of service in n/a (critical 10.0)
- [CVE-1999-0182](https://insights.sbomify.com/CVE-1999-0182/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-32745 and fix it if it is affected.

What it is: CVE-2022-32745 is a high-severity vulnerability in Samba Samba, published on 25 Aug 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-32745 in the wild and no public exploit code.

Affected product: Samba Samba. 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-2022-32745/ (Markdown: https://insights.sbomify.com/CVE-2022-32745/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-32745
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-32745
- OSV: https://osv.dev/vulnerability/CVE-2022-32745

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-32745/
Summaries are generated and may contain mistakes; the official description above is the record.