# CVE-2019-11775: Race condition in Eclipse OpenJ9

> A race condition in the Eclipse OpenJ9 JIT compiler can lead to out-of-bounds array reads, potentially allowing code execution or denial of service.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 30 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3x93-p299-w98q

## What is CVE-2019-11775?

CVE-2019-11775 is a high-severity vulnerability in Redhat Enterprise Linux Desktop, published on 30 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2019-11775?

It affects 5 products.


Products: Eclipse Openj9, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Redhat Satellite.

## How do I fix CVE-2019-11775?

Upgrade to a fixed version.

## Is CVE-2019-11775 being exploited?

There is no known exploitation of CVE-2019-11775 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Enterprise Linux Desktop

- [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-2019-11775 and fix it if it is affected.

What it is: CVE-2019-11775 is a high-severity vulnerability in Redhat Enterprise Linux Desktop, published on 30 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-11775 in the wild and no public exploit code.

Affected product: Redhat Enterprise Linux Desktop. 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-2019-11775/ (Markdown: https://insights.sbomify.com/CVE-2019-11775/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-11775
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-11775
- OSV: https://osv.dev/vulnerability/CVE-2019-11775

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-11775/
Summaries are generated and may contain mistakes; the official description above is the record.