# CVE-2022-41568: Denial of service in LINE client for iOS

> An attacker can crash the LINE iOS client by sharing an invalid end-to-end encryption key in a group chat.

- **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:** No
- **Published:** 29 Nov 2022
- **Updated:** 25 Apr 2025
- **Also known as:** GHSA-8736-x895-x6jp

## What is CVE-2022-41568?

CVE-2022-41568 is a high-severity denial of service vulnerability in Linecorp Line, published on 29 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

LINE client for iOS before 12.17.0 might be crashed by sharing an invalid shared key of e2ee in group chat.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2022-41568?

It affects 1 product.


Products: Linecorp Line.

## How do I fix CVE-2022-41568?

No fix has been published for CVE-2022-41568 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-41568 being exploited?

There is no known exploitation of CVE-2022-41568 in the wild and no public exploit code.

## Other vulnerabilities in Linecorp Line

- [CVE-2023-45559](https://insights.sbomify.com/CVE-2023-45559/): Information disclosure in n/a (high 8.2)
- [CVE-2023-43305](https://insights.sbomify.com/CVE-2023-43305/): Information disclosure in n/a (high 8.2)
- [CVE-2023-43300](https://insights.sbomify.com/CVE-2023-43300/): Information disclosure in n/a (high 8.2)
- [CVE-2023-43301](https://insights.sbomify.com/CVE-2023-43301/): Code injection in n/a (high 8.2)
- [CVE-2023-43302](https://insights.sbomify.com/CVE-2023-43302/): Information disclosure in n/a (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-41568 and fix it if it is affected.

What it is: CVE-2022-41568 is a high-severity denial of service vulnerability in Linecorp Line, published on 29 Nov 2022. 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-2022-41568 in the wild and no public exploit code.

Affected product: Linecorp Line. 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-2022-41568/ (Markdown: https://insights.sbomify.com/CVE-2022-41568/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-41568
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-41568
- OSV: https://osv.dev/vulnerability/CVE-2022-41568

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-41568/
Summaries are generated and may contain mistakes; the official description above is the record.