# CVE-2023-2597: Memory corruption in Eclipse OpenJ9

> Attackers can exploit a buffer overflow in the shared cache to execute arbitrary code or cause denial of service in Eclipse OpenJ9.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 May 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-4794-756c-cx7v

## What is CVE-2023-2597?

CVE-2023-2597 is a high-severity memory corruption vulnerability in Eclipse OpenJ9, published on 22 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In Eclipse Openj9 before version 0.38.0, in the implementation of the shared cache (which is enabled by default in OpenJ9 builds) the size of a string is not properly checked against the size of the buffer.

Weakness: CWE-125 (Out-of-bounds Read), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-2597?

It affects 1 product.


Products: Eclipse Openj9.

## How do I fix CVE-2023-2597?

Upgrade to a fixed version.

## Is CVE-2023-2597 being exploited?

There is no known exploitation of CVE-2023-2597 in the wild and no public exploit code.

## Other vulnerabilities in Eclipse OpenJ9

- [CVE-2021-41035](https://insights.sbomify.com/CVE-2021-41035/): Security feature bypass in Eclipse OMR (critical 9.8)
- [CVE-2020-27221](https://insights.sbomify.com/CVE-2020-27221/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2019-11772](https://insights.sbomify.com/CVE-2019-11772/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2018-12547](https://insights.sbomify.com/CVE-2018-12547/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2018-12549](https://insights.sbomify.com/CVE-2018-12549/): Null dereference in Eclipse OpenJ9 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2597 and fix it if it is affected.

What it is: CVE-2023-2597 is a high-severity memory corruption vulnerability in Eclipse OpenJ9, published on 22 May 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-2023-2597 in the wild and no public exploit code.

Affected product: Eclipse OpenJ9. 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-2023-2597/ (Markdown: https://insights.sbomify.com/CVE-2023-2597/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2597
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2597
- OSV: https://osv.dev/vulnerability/CVE-2023-2597

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2597/
Summaries are generated and may contain mistakes; the official description above is the record.