# CVE-2024-55656: RedisBloom Integer Overflow Remote Code Execution Vulnerability

> An integer overflow in RedisBloom allows authenticated attackers to trigger out-of-bounds writes, potentially leading to remote code execution or information disclosure.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jan 2025
- **Updated:** 8 Jan 2025
- **Also known as:** GHSA-x5rx-rmq3-ff3h

## What is CVE-2024-55656?

CVE-2024-55656 is a high-severity vulnerability in RedisBloom, published on 8 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

RedisBloom adds a set of probabilistic data structures to Redis. There is an integer overflow vulnerability in RedisBloom, which is a module used in Redis. The integer overflow vulnerability allows an attacker (a redis client which knows the password) to allocate memory in the heap lesser than the required memory due to wraparound. Then read and write can be performed beyond this allocated memory, leading to info leak and OOB write. The integer overflow is in CMS.INITBYDIM command, which initialize a Count-Min Sketch to dimensions specified by user. It accepts two values (width and depth) and uses them to allocate memory in NewCMSketch(). This vulnerability is fixed in 2.2.19, 2.4.12, 2.6.14, and 2.8.2.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2024-55656?


## How do I fix CVE-2024-55656?

No fix has been published for CVE-2024-55656 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-55656 being exploited?

There is no known exploitation of CVE-2024-55656 in the wild and no public exploit code.

Public exploit code:

- https://github.com/rick2600/redis-stack-CVE-2024-55656 (github_poc): https://github.com/rick2600/redis-stack-CVE-2024-55656

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-55656 and fix it if it is affected.

What it is: CVE-2024-55656 is a high-severity vulnerability in RedisBloom, published on 8 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-55656 in the wild and no public exploit code.

Affected product: RedisBloom. 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-2024-55656/ (Markdown: https://insights.sbomify.com/CVE-2024-55656/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-55656
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-55656
- OSV: https://osv.dev/vulnerability/CVE-2024-55656

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-55656/
Summaries are generated and may contain mistakes; the official description above is the record.