# CVE-2014-5077: Null dereference in n/a

> Remote attackers can cause a denial of service via NULL pointer dereference in the Linux kernel SCTP implementation when authentication is enabled.

- **Severity:** High 7.1 (`AV:N/AC:M/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Aug 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-5077, GHSA-h74m-54fh-xp9p, RHSA-2014:1668, RHSA-2014:1872, UBUNTU-CVE-2014-5077

## What is CVE-2014-5077?

CVE-2014-5077 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 1 Aug 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The sctp_assoc_update function in net/sctp/associola.c in the Linux kernel through 3.15.8, when SCTP authentication is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by starting to establish an association between two endpoints immediately after an exchange of INIT and INIT ACK chunks to establish an earlier association between these endpoints in the opposite direction.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2014-5077?

It affects 8 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `kernel` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug-debuginfo` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug-devel` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo-common-x86_64` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-devel` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-doc` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-firmware` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-headers` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `perf` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `perf-debuginfo` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `python-perf` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `python-perf-debuginfo` | Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-bootwrapper` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug-debuginfo` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debug-devel` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo-common-i686` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo-common-ppc64` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo-common-s390x` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-debuginfo-common-x86_64` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-devel` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-doc` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-firmware` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-headers` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-kdump` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-kdump-debuginfo` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel-kdump-devel` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `perf` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `perf-debuginfo` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `python-perf` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `python-perf-debuginfo` | Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.51.1.el6 |
| `kernel` | Red Hat:rhel_eus:6.5::computenode | All versions | 0:2.6.32-431.37.1.el6 |
| `kernel-abi-whitelists` | Red Hat:rhel_eus:6.5::computenode | All versions | 0:2.6.32-431.37.1.el6 |
| `kernel-debug` | Red Hat:rhel_eus:6.5::computenode | All versions | 0:2.6.32-431.37.1.el6 |
| `kernel-debug-debuginfo` | Red Hat:rhel_eus:6.5::computenode | All versions | 0:2.6.32-431.37.1.el6 |
| `kernel-debug-devel` | Red Hat:rhel_eus:6.5::computenode | All versions | 0:2.6.32-431.37.1.el6 |

Products: Canonical Ubuntu Linux, Linux kernel, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Suse Linux Enterprise Desktop, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Server.

## How do I fix CVE-2014-5077?

Apply the vendor's patch.

## Is CVE-2014-5077 being exploited?

There is no known exploitation of CVE-2014-5077 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-2014-5077 and fix it if it is affected.

What it is: CVE-2014-5077 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 1 Aug 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-2014-5077 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-2014-5077/ (Markdown: https://insights.sbomify.com/CVE-2014-5077/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-5077
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-5077
- OSV: https://osv.dev/vulnerability/CVE-2014-5077

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-5077/
Summaries are generated and may contain mistakes; the official description above is the record.