# CVE-2018-12326: Memory corruption in n/a

> A buffer overflow in the Redis command-line interface allows attackers to execute arbitrary code and escalate privileges via crafted input.

- **Severity:** High 8.4 (`CVSS:3.0/AV:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2018-12326, GHSA-8829-5g6p-wqm9, UBUNTU-CVE-2018-12326

## What is CVE-2018-12326?

CVE-2018-12326 is a high-severity memory corruption vulnerability in n/a, published on 17 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer overflow in redis-cli of Redis before 4.0.10 and 5.x before 5.0 RC3 allows an attacker to achieve code execution and escalate to higher privileges via a crafted command line. NOTE: It is unclear whether there are any common situations in which redis-cli is used with, for example, a -h (aka hostname) argument from an untrusted source.

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

## Which versions are affected by CVE-2018-12326?

It affects 1 product.


Products: Redislabs Redis.

## How do I fix CVE-2018-12326?

Upgrade to a fixed version.

## Is CVE-2018-12326 being exploited?

There is no known exploitation of CVE-2018-12326 in the wild and no public exploit code.

Public exploit code:

- Redis-cli < 5.0 - Buffer Overflow (PoC) (exploitdb)
- https://github.com/spasm5/CVE-2018-12326 (github_poc): https://github.com/spasm5/CVE-2018-12326

## Other vulnerabilities in n/a

- [CVE-2017-15047](https://insights.sbomify.com/CVE-2017-15047/): Denial of service in n/a (critical 9.8)
- [CVE-2020-21468](https://insights.sbomify.com/CVE-2020-21468/): Denial of service in n/a (high 7.5)
- [CVE-2018-12453](https://insights.sbomify.com/CVE-2018-12453/): Denial of service in n/a (high 7.5)
- [CVE-2016-10517](https://insights.sbomify.com/CVE-2016-10517/): Other in n/a (high 7.4)
- [CVE-2016-8339](https://insights.sbomify.com/CVE-2016-8339/): Memory corruption in Redis (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12326 and fix it if it is affected.

What it is: CVE-2018-12326 is a high-severity memory corruption vulnerability in n/a, published on 17 Jun 2018. 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-2018-12326 in the wild and no public exploit code.

Affected product: n/a. 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-2018-12326/ (Markdown: https://insights.sbomify.com/CVE-2018-12326/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12326
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12326
- OSV: https://osv.dev/vulnerability/CVE-2018-12326

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12326/
Summaries are generated and may contain mistakes; the official description above is the record.