# CVE-2023-42031: IBM CICS TX denial of service

> A privileged user can cause a denial of service in IBM CICS TX products through uncontrolled resource consumption.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Oct 2023
- **Updated:** 11 Sep 2024
- **Also known as:** GHSA-8f2j-r3g9-qhmm

## What is CVE-2023-42031?

CVE-2023-42031 is a medium-severity denial of service vulnerability in IBM CICS TX Advanced, published on 24 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

IBM TXSeries for Multiplatforms, 8.1, 8.2, and 9.1, CICS TX Standard CICS TX Advanced 10.1 and 11.1 could allow a privileged user to cause a denial of service due to uncontrolled resource consumption.  IBM X-Force ID:  266016.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2023-42031?

It affects 2 products.


Products: Ibm Cics Tx, Ibm Txseries for Multiplatforms.

## How do I fix CVE-2023-42031?

No fix has been published for CVE-2023-42031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42031 being exploited?

There is no known exploitation of CVE-2023-42031 in the wild and no public exploit code.

## Other vulnerabilities in IBM CICS TX Advanced

- [CVE-2022-31767](https://insights.sbomify.com/CVE-2022-31767/): Command injection in CICS TX Advanced (critical 9.8)
- [CVE-2025-1329](https://insights.sbomify.com/CVE-2025-1329/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1330](https://insights.sbomify.com/CVE-2025-1330/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1331](https://insights.sbomify.com/CVE-2025-1331/): IBM CICS TX code execution (high 7.8)
- [CVE-2023-33850](https://insights.sbomify.com/CVE-2023-33850/): IBM GSKit-Crypto information disclosure (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42031 and fix it if it is affected.

What it is: CVE-2023-42031 is a medium-severity denial of service vulnerability in IBM CICS TX Advanced, published on 24 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-42031 in the wild and no public exploit code.

Affected product: IBM CICS TX Advanced. 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-2023-42031/ (Markdown: https://insights.sbomify.com/CVE-2023-42031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42031
- OSV: https://osv.dev/vulnerability/CVE-2023-42031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-42031/
Summaries are generated and may contain mistakes; the official description above is the record.