# CVE-2021-44496: Memory corruption in n/a

> Attackers can exploit a buffer overflow in FIS GT.M to overwrite memory and execute arbitrary code via crafted input.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 15 Apr 2022
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2021-44496, GHSA-7c8m-rjpw-8hh3, UBUNTU-CVE-2021-44496

## What is CVE-2021-44496?

CVE-2021-44496 is a critical memory corruption vulnerability in n/a, published on 15 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, an attacker can control the size variable and buffer that is passed to a call to memcpy. An attacker can use this to overwrite key data structures and gain control of the flow of execution.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2021-44496?

It affects 1 product.


Products: Fisglobal Gt.m.

## How do I fix CVE-2021-44496?

Upgrade to a fixed version.

## Is CVE-2021-44496 being exploited?

There is no known exploitation of CVE-2021-44496 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-44486](https://insights.sbomify.com/CVE-2021-44486/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-44488](https://insights.sbomify.com/CVE-2021-44488/): Memory corruption in n/a (critical 9.1)
- [CVE-2021-44481](https://insights.sbomify.com/CVE-2021-44481/): Null dereference in n/a (high 7.5)
- [CVE-2021-44482](https://insights.sbomify.com/CVE-2021-44482/): Null dereference in n/a (high 7.5)
- [CVE-2021-44483](https://insights.sbomify.com/CVE-2021-44483/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-44496 and fix it if it is affected.

What it is: CVE-2021-44496 is a critical memory corruption vulnerability in n/a, published on 15 Apr 2022. 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-2021-44496 in the wild and no public exploit code.

Affected product: n/a. 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-2021-44496/ (Markdown: https://insights.sbomify.com/CVE-2021-44496/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44496
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44496
- OSV: https://osv.dev/vulnerability/CVE-2021-44496

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44496/
Summaries are generated and may contain mistakes; the official description above is the record.