# CVE-2014-3569: Null dereference in n/a

> Remote attackers can crash the application via a null pointer dereference in OpenSSL when handling unexpected SSLv3 handshakes on no-ssl3 configurations.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 24 Dec 2014
- **Updated:** 6 Aug 2024
- **Also known as:** CVE-2015-3569, DEBIAN-CVE-2014-3569, GHSA-66cr-qxrv-fpg2, UBUNTU-CVE-2014-3569

## What is CVE-2014-3569?

CVE-2014-3569 is a medium-severity vulnerability in Openssl Openssl, published on 24 Dec 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 0.9.8zc, 1.0.0o, and 1.0.1j does not properly handle attempts to use unsupported protocols, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an unexpected handshake, as demonstrated by an SSLv3 handshake to a no-ssl3 application with certain error handling.  NOTE: this issue became relevant after the CVE-2014-3568 fix.

## Which versions are affected by CVE-2014-3569?

It affects 1 product.


Products: Openssl Openssl.

## How do I fix CVE-2014-3569?

Upgrade to a fixed version.

## Is CVE-2014-3569 being exploited?

There is no known exploitation of CVE-2014-3569 in the wild and no public exploit code.

## Other vulnerabilities in Openssl Openssl

- [CVE-2009-3245](https://insights.sbomify.com/CVE-2009-3245/): Null dereference in n/a (critical 10.0)
- [CVE-2006-3738](https://insights.sbomify.com/CVE-2006-3738/): Memory corruption in n/a (critical 10.0)
- [CVE-2026-63073](https://insights.sbomify.com/CVE-2026-63073/): Untrusted Sender DN Used as Format String in CMP Response Validation (critical 9.8)
- [CVE-2016-6309](https://insights.sbomify.com/CVE-2016-6309/): Use after free in n/a (critical 9.8)
- [CVE-2016-0799](https://insights.sbomify.com/CVE-2016-0799/): Integer overflow in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-3569 and fix it if it is affected.

What it is: CVE-2014-3569 is a medium-severity vulnerability in Openssl Openssl, published on 24 Dec 2014. 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-2014-3569 in the wild and no public exploit code.

Affected product: Openssl Openssl. 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-2014-3569/ (Markdown: https://insights.sbomify.com/CVE-2014-3569/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-3569
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-3569
- OSV: https://osv.dev/vulnerability/CVE-2014-3569

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-3569/
Summaries are generated and may contain mistakes; the official description above is the record.