# CVE-2015-2868: Memory corruption in ComfortLink II SCC firmware

> Remote attackers can execute arbitrary code on Trane ComfortLink II devices by sending oversized requests to the DSS service, requiring firmware updates.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 6 Jan 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-rggx-gpg5-f3h9

## What is CVE-2015-2868?

CVE-2015-2868 is a critical memory corruption vulnerability in Trane ComfortLink II SCC firmware, published on 6 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An exploitable remote code execution vulnerability exists in the Trane ComfortLink II firmware version 2.0.2 in DSS service. An attacker who can connect to the DSS service on the Trane ComfortLink II device can send an overly long REG request that can overflow a fixed size stack buffer, resulting in arbitrary code execution.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2015-2868?

It affects 1 product.


Products: Trane Comfortlink Ii Firmware.

## How do I fix CVE-2015-2868?

No fix has been published for CVE-2015-2868 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-2868 being exploited?

There is no known exploitation of CVE-2015-2868 in the wild and no public exploit code.

## Other vulnerabilities in Trane ComfortLink II SCC firmware

- [CVE-2015-2867](https://insights.sbomify.com/CVE-2015-2867/): Hardcoded credentials in ComfortLink II SCC firmware (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-2868 and fix it if it is affected.

What it is: CVE-2015-2868 is a critical memory corruption vulnerability in Trane ComfortLink II SCC firmware, published on 6 Jan 2017. 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-2015-2868 in the wild and no public exploit code.

Affected product: Trane ComfortLink II SCC firmware. 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-2015-2868/ (Markdown: https://insights.sbomify.com/CVE-2015-2868/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-2868
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-2868
- OSV: https://osv.dev/vulnerability/CVE-2015-2868

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-2868/
Summaries are generated and may contain mistakes; the official description above is the record.