# CVE-2023-49700: Buffer Copy Without Checking size of input in IMS

> A buffer overflow in the Streamingmedia component allows attackers to write past buffer boundaries, potentially leading to code execution or crashes.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-76qc-9qwc-59pg

## What is CVE-2023-49700?

CVE-2023-49700 is a medium-severity memory corruption vulnerability in ASR Falcon, published on 30 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Security best practices violations, a string operation in Streamingmedia will write past the end of fixed-size destination buffer if the source buffer is too large.

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

## Which versions are affected by CVE-2023-49700?

It affects 2 products.


Products: Asrmicro Asr1803 Firmware, Asrmicro Asr1806 Firmware.

## How do I fix CVE-2023-49700?

No fix has been published for CVE-2023-49700 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-49700 being exploited?

There is no known exploitation of CVE-2023-49700 in the wild and no public exploit code.

## Other vulnerabilities in ASR Falcon

- [CVE-2026-42799](https://insights.sbomify.com/CVE-2026-42799/): Out-of-bounds read in ulp (high 7.4)
- [CVE-2023-49701](https://insights.sbomify.com/CVE-2023-49701/): Out-of-bounds access a buffer in SIM management (high 7.2)
- [CVE-2023-49699](https://insights.sbomify.com/CVE-2023-49699/): Out-of-bounds access a buffer in IMS (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-49700 and fix it if it is affected.

What it is: CVE-2023-49700 is a medium-severity memory corruption vulnerability in ASR Falcon, published on 30 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-49700 in the wild and no public exploit code.

Affected product: ASR Falcon. 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-2023-49700/ (Markdown: https://insights.sbomify.com/CVE-2023-49700/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-49700
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-49700
- OSV: https://osv.dev/vulnerability/CVE-2023-49700

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-49700/
Summaries are generated and may contain mistakes; the official description above is the record.