# CVE-2022-23096: Memory corruption in n/a

> An out-of-bounds read in the Connman DNS proxy allows attackers to cause denial of service or disclose sensitive memory contents.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** Yes
- **Published:** 28 Jan 2022
- **Updated:** 15 Oct 2024
- **Also known as:** CLEANSTART-2024-HH25649, DEBIAN-CVE-2022-23096, GHSA-h9cr-qjg3-wh75, UBUNTU-CVE-2022-23096

## What is CVE-2022-23096?

CVE-2022-23096 is a critical memory corruption vulnerability in Debian Debian Linux, published on 28 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in the DNS proxy in Connman through 1.40. The TCP server reply implementation lacks a check for the presence of sufficient Header Data, leading to an out-of-bounds read.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2022-23096?

It affects 2 products.


Products: Debian Debian Linux, Intel Connman.

## How do I fix CVE-2022-23096?

Apply the vendor's patch.

## Is CVE-2022-23096 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23096 exists.

## 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-2022-23096 and fix it if it is affected.

What it is: CVE-2022-23096 is a critical memory corruption vulnerability in Debian Debian Linux, published on 28 Jan 2022. 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-2022-23096 exists.

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-2022-23096/ (Markdown: https://insights.sbomify.com/CVE-2022-23096/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-23096
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-23096
- OSV: https://osv.dev/vulnerability/CVE-2022-23096

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-23096/
Summaries are generated and may contain mistakes; the official description above is the record.