# CVE-2014-3687: Denial of service in n/a

> Remote attackers can cause a system panic and denial of service in the Linux kernel SCTP implementation by sending duplicate ASCONF chunks.

- **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:** Yes
- **Published:** 10 Nov 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-3687, GHSA-g3cq-4g9m-v985, UBUNTU-CVE-2014-3687

## What is CVE-2014-3687?

CVE-2014-3687 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Nov 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The sctp_assoc_lookup_asconf_ack function in net/sctp/associola.c in the SCTP implementation in the Linux kernel through 3.17.2 allows remote attackers to cause a denial of service (panic) via duplicate ASCONF chunks that trigger an incorrect uncork within the side-effect interpreter.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2014-3687?

It affects 12 products.


Products: Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Server, Opensuse Evergreen, Oracle Linux, Redhat Enterprise Mrg, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Software Development Kit, Suse Linux Enterprise Workstation Extension, Suse Suse Linux Enterprise Server.

## How do I fix CVE-2014-3687?

Apply the vendor's patch.

## Is CVE-2014-3687 being exploited?

There is no known exploitation of CVE-2014-3687 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-3687 and fix it if it is affected.

What it is: CVE-2014-3687 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Nov 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-2014-3687 in the wild and no public exploit code.

Affected product: Canonical Ubuntu 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-2014-3687/ (Markdown: https://insights.sbomify.com/CVE-2014-3687/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-3687
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-3687
- OSV: https://osv.dev/vulnerability/CVE-2014-3687

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-3687/
Summaries are generated and may contain mistakes; the official description above is the record.