# CVE-2022-2764: Denial of service in undertow

> Attackers can cause a denial of service in Undertow by triggering indefinite waits during EJB invocations, affecting server availability.

- **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:** Yes
- **Published:** 1 Sep 2022
- **Updated:** 3 Aug 2024
- **Also known as:** DEBIAN-CVE-2022-2764, GHSA-xpxq-cp94-87j2, RHSA-2022:8790, RHSA-2022:8791, RHSA-2022:8792, UBUNTU-CVE-2022-2764

## What is CVE-2022-2764?

CVE-2022-2764 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 1 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A flaw was found in Undertow. Denial of service can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2022-2764?

It affects 9 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `eap7-undertow` | Red Hat:jboss_enterprise_application_platform:7.4::el7 | All versions | 0:2.2.20-1.SP1_redhat_00001.1.el7eap |
| `eap7-undertow` | Red Hat:jboss_enterprise_application_platform:7.4::el8 | All versions | 0:2.2.20-1.SP1_redhat_00001.1.el8eap |
| `eap7-undertow` | Red Hat:jboss_enterprise_application_platform:7.4::el9 | All versions | 0:2.2.20-1.SP1_redhat_00001.1.el9eap |

Products: Netapp Active Iq Unified Manager, Netapp Cloud Secure Agent, Netapp Oncommand Insight, Netapp Oncommand Workflow Automation, Redhat Integration Camel K, Redhat Jboss Enterprise Application Platform, Redhat Jboss Fuse, Redhat Single Sign-On, Redhat Undertow.

## How do I fix CVE-2022-2764?

Apply the vendor's patch.

## Is CVE-2022-2764 being exploited?

There is no known exploitation of CVE-2022-2764 in the wild and no public exploit code.

## Other vulnerabilities in Netapp Active Iq Unified Manager

- [CVE-2022-31692](https://insights.sbomify.com/CVE-2022-31692/): Spring Security authorization rules can be bypassed via forward or include dispatcher types (critical 9.8)
- [CVE-2022-2526](https://insights.sbomify.com/CVE-2022-2526/): Use after free in systemd-resolved (critical 9.8)
- [CVE-2022-22978](https://insights.sbomify.com/CVE-2022-22978/): Authorization bypass in Spring Security (critical 9.8)
- [CVE-2021-22931](https://insights.sbomify.com/CVE-2021-22931/): Code injection in Node (critical 9.8)
- [CVE-2018-2938](https://insights.sbomify.com/CVE-2018-2938/): Code injection in Java (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2764 and fix it if it is affected.

What it is: CVE-2022-2764 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 1 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-2764 in the wild and no public exploit code.

Affected product: Netapp Active Iq Unified Manager. 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-2022-2764/ (Markdown: https://insights.sbomify.com/CVE-2022-2764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2764
- OSV: https://osv.dev/vulnerability/CVE-2022-2764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2764/
Summaries are generated and may contain mistakes; the official description above is the record.