# CVE-2024-39349: Memory corruption in Camera Firmware

> Remote attackers can execute arbitrary code via a buffer overflow in Synology Camera Firmware, requiring a firmware upgrade.

- **Severity:** Critical 9.8 (`CVSS:3.1/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:** 28 Jun 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-fc4v-676g-hqh4

## What is CVE-2024-39349?

CVE-2024-39349 is a critical memory corruption vulnerability in Synology Camera Firmware, published on 28 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability regarding buffer copy without checking size of input ('Classic Buffer Overflow') is found in the libjansson component and it does not affect the upstream library. This allows remote attackers to execute arbitrary code via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.7-0298 may be affected: BC500 and TC500.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2024-39349?

It affects 2 products.


Products: Synology Bc500 Firmware, Synology Tc500 Firmware.

## How do I fix CVE-2024-39349?

No fix has been published for CVE-2024-39349 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-39349 being exploited?

There is no known exploitation of CVE-2024-39349 in the wild and no public exploit code.

## Other vulnerabilities in Synology Camera Firmware

- [CVE-2024-11131](https://insights.sbomify.com/CVE-2024-11131/): Memory corruption in Camera Firmware (critical 9.8)
- [CVE-2023-5746](https://insights.sbomify.com/CVE-2023-5746/): Code injection in Camera Firmware (critical 9.8)
- [CVE-2024-39350](https://insights.sbomify.com/CVE-2024-39350/): Auth bypass in Camera Firmware (high 7.5)
- [CVE-2023-47802](https://insights.sbomify.com/CVE-2023-47802/): Command injection in Camera Firmware (high 7.2)
- [CVE-2024-39351](https://insights.sbomify.com/CVE-2024-39351/): Command injection in Camera Firmware (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-39349 and fix it if it is affected.

What it is: CVE-2024-39349 is a critical memory corruption vulnerability in Synology Camera Firmware, published on 28 Jun 2024. 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-2024-39349 in the wild and no public exploit code.

Affected product: Synology Camera 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-2024-39349/ (Markdown: https://insights.sbomify.com/CVE-2024-39349/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-39349
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-39349
- OSV: https://osv.dev/vulnerability/CVE-2024-39349

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-39349/
Summaries are generated and may contain mistakes; the official description above is the record.