# CVE-2020-4549: Memory corruption in i2 Analyst Notebook

> A local attacker can execute arbitrary code by tricking a user into opening a malicious file in IBM i2 Analyst Notebook.

- **Severity:** High 7.8 (`CVSS:3.0/AC:L/C:H/A:H/UI:R/I:H/S:U/PR:N/AV:L/RC:C/E:U/RL:O`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Aug 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-8932-qxvp-f4gm

## What is CVE-2020-4549?

CVE-2020-4549 is a high-severity memory corruption vulnerability in IBM i2 Analyst Notebook, published on 3 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

IBM i2 Analyst Notebook 9.2.1 could allow a local attacker to execute arbitrary code on the system, caused by a memory corruption. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 183317.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2020-4549?

It affects 1 product.


Products: Ibm I2 Analysts Notebook.

## How do I fix CVE-2020-4549?

No fix has been published for CVE-2020-4549 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-4549 being exploited?

There is no known exploitation of CVE-2020-4549 in the wild and no public exploit code.

## Other vulnerabilities in IBM i2 Analyst Notebook

- [CVE-2020-4721](https://insights.sbomify.com/CVE-2020-4721/): Memory corruption in i2 Analyst Notebook (high 7.8)
- [CVE-2020-4722](https://insights.sbomify.com/CVE-2020-4722/): Memory corruption in i2 Analyst Notebook (high 7.8)
- [CVE-2020-4723](https://insights.sbomify.com/CVE-2020-4723/): Memory corruption in i2 Analyst Notebook (high 7.8)
- [CVE-2020-4724](https://insights.sbomify.com/CVE-2020-4724/): Memory corruption in i2 Analyst Notebook (high 7.8)
- [CVE-2020-4550](https://insights.sbomify.com/CVE-2020-4550/): Memory corruption in i2 Analyst Notebook (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-4549 and fix it if it is affected.

What it is: CVE-2020-4549 is a high-severity memory corruption vulnerability in IBM i2 Analyst Notebook, published on 3 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-4549 in the wild and no public exploit code.

Affected product: IBM i2 Analyst Notebook. 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-2020-4549/ (Markdown: https://insights.sbomify.com/CVE-2020-4549/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-4549
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-4549
- OSV: https://osv.dev/vulnerability/CVE-2020-4549

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-4549/
Summaries are generated and may contain mistakes; the official description above is the record.