# CVE-2018-1993: Information disclosure in Spectrum Scale

> Enabling Local Read Only Cache in IBM Spectrum Scale may cause file reads to return data from incorrect files, leading to information disclosure.

- **Severity:** Medium 4.0 (`CVSS:3.0/A:N/AC:L/AV:L/C:L/I:N/PR:N/S:U/UI:N/E:U/RC:C/RL:O`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jan 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-c57r-54fv-vmmq

## What is CVE-2018-1993?

CVE-2018-1993 is a medium-severity vulnerability in Ibm Spectrum Scale, published on 8 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

IBM Spectrum Scale (GPFS) 4.1.1, 4.2.0, 4.2.1, 4.2.2, 4.2.3, and 5.0.0 where the use of Local Read Only Cache (LROC) is enabled may caused read operation on a file to return data from a different file. IBM X-Force ID: 154440.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-1993?

It affects 1 product.


Products: Ibm Spectrum Scale.

## How do I fix CVE-2018-1993?

No fix has been published for CVE-2018-1993 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-1993 being exploited?

There is no known exploitation of CVE-2018-1993 in the wild and no public exploit code.

## Other vulnerabilities in Ibm Spectrum Scale

- [CVE-2019-4715](https://insights.sbomify.com/CVE-2019-4715/): Command injection in Spectrum Scale (high 8.8)
- [CVE-2021-29740](https://insights.sbomify.com/CVE-2021-29740/): Other in Spectrum Scale (high 8.4)
- [CVE-2019-4558](https://insights.sbomify.com/CVE-2019-4558/): Privilege escalation in Spectrum Scale (high 8.1)
- [CVE-2020-4217](https://insights.sbomify.com/CVE-2020-4217/): Denial of service in Spectrum Scale (high 7.5)
- [CVE-2020-4273](https://insights.sbomify.com/CVE-2020-4273/): Command injection in Spectrum Scale (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1993 and fix it if it is affected.

What it is: CVE-2018-1993 is a medium-severity vulnerability in Ibm Spectrum Scale, published on 8 Jan 2019. 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-2018-1993 in the wild and no public exploit code.

Affected product: Ibm Spectrum Scale. 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-2018-1993/ (Markdown: https://insights.sbomify.com/CVE-2018-1993/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1993
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1993
- OSV: https://osv.dev/vulnerability/CVE-2018-1993

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-1993/
Summaries are generated and may contain mistakes; the official description above is the record.