# CVE-2023-39346: File upload in LinuxASMCallGraph

> Attackers can achieve remote code execution on the server by uploading a crafted ZIP file due to improper file filtering.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Aug 2023
- **Updated:** 17 Oct 2024
- **Also known as:** GHSA-63c3-r9qm-c2wx

## What is CVE-2023-39346?

CVE-2023-39346 is a high-severity vulnerability in bjrjk LinuxASMCallGraph, published on 4 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

LinuxASMCallGraph is software for drawing the call graph of the programming code. Linux ASMCallGraph before commit 20dba06bd1a3cf260612d4f21547c25002121cd5 allows attackers to cause a remote code execution on the server side via uploading a crafted ZIP file due to incorrect filtering rules of uploaded file. The problem has been patched in commit 20dba06bd1a3cf260612d4f21547c25002121cd5. There are no known workarounds.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2023-39346?

It affects 1 product.


Products: Renjikai Linuxasmcallgraph.

## How do I fix CVE-2023-39346?

No fix has been published for CVE-2023-39346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-39346 being exploited?

There is no known exploitation of CVE-2023-39346 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-39346 and fix it if it is affected.

What it is: CVE-2023-39346 is a high-severity vulnerability in bjrjk LinuxASMCallGraph, published on 4 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-39346 in the wild and no public exploit code.

Affected product: bjrjk LinuxASMCallGraph. 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-2023-39346/ (Markdown: https://insights.sbomify.com/CVE-2023-39346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-39346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-39346
- OSV: https://osv.dev/vulnerability/CVE-2023-39346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-39346/
Summaries are generated and may contain mistakes; the official description above is the record.