# CVE-2017-12463: Denial of service in n/a

> Attackers can cause a denial of service via memory consumption in CCN-lite by sending packets with unknown formats.

- **Severity:** High 7.5 (`CVSS:3.0/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:** 7 Feb 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7jc3-jgh2-x9w6

## What is CVE-2017-12463?

CVE-2017-12463 is a high-severity denial of service vulnerability in n/a, published on 7 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory leak in the ccnl_app_RX function in ccnl-uapi.c in CCN-lite before 2.00 allows context-dependent attackers to cause a denial of service (memory consumption) via vectors involving an envelope_s structure pointer when the packet format is unknown.

Weakness: CWE-772 (Missing Release of Resource after Effective Lifetime)

## Which versions are affected by CVE-2017-12463?

It affects 1 product.


Products: Ccn-Lite Ccn-Lite.

## How do I fix CVE-2017-12463?

No fix has been published for CVE-2017-12463 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-12463 being exploited?

There is no known exploitation of CVE-2017-12463 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-12889](https://insights.sbomify.com/CVE-2018-12889/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-7039](https://insights.sbomify.com/CVE-2018-7039/): Integer overflow in n/a (critical 9.8)
- [CVE-2018-6948](https://insights.sbomify.com/CVE-2018-6948/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-6953](https://insights.sbomify.com/CVE-2018-6953/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-12465](https://insights.sbomify.com/CVE-2017-12465/): Multiple integer overflows in CCN-lite before 2.00 allow context-dependent attackers to have unspecified impact via vectors involving the (1 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-12463 and fix it if it is affected.

What it is: CVE-2017-12463 is a high-severity denial of service vulnerability in n/a, published on 7 Feb 2018. 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-2017-12463 in the wild and no public exploit code.

Affected product: n/a. 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-2017-12463/ (Markdown: https://insights.sbomify.com/CVE-2017-12463/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-12463
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-12463
- OSV: https://osv.dev/vulnerability/CVE-2017-12463

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-12463/
Summaries are generated and may contain mistakes; the official description above is the record.