# CVE-2019-20005: Memory corruption in n/a

> A heap-based buffer over-read in ezXML allows attackers to cause denial of service or disclose sensitive memory contents via crafted XML files.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 26 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-20005, GHSA-63xx-5fx7-r7rm, UBUNTU-CVE-2019-20005

## What is CVE-2019-20005?

CVE-2019-20005 is a medium-severity memory corruption vulnerability in n/a, published on 26 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in ezXML 0.8.3 through 0.8.6. The function ezxml_decode, while parsing a crafted XML file, performs incorrect memory handling, leading to a heap-based buffer over-read while running strchr() starting with a pointer after a '\0' character (where the processing of a string was finished).

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2019-20005?

It affects 1 product.


Products: Ezxml Project Ezxml.

## How do I fix CVE-2019-20005?

Upgrade to a fixed version.

## Is CVE-2019-20005 being exploited?

There is no known exploitation of CVE-2019-20005 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-26220](https://insights.sbomify.com/CVE-2021-26220/): Memory corruption in n/a (high 8.1)
- [CVE-2021-26221](https://insights.sbomify.com/CVE-2021-26221/): Memory corruption in n/a (high 8.1)
- [CVE-2021-26222](https://insights.sbomify.com/CVE-2021-26222/): Memory corruption in n/a (high 8.1)
- [CVE-2019-20006](https://insights.sbomify.com/CVE-2019-20006/): Use after free in n/a (high 7.5)
- [CVE-2022-30045](https://insights.sbomify.com/CVE-2022-30045/): Memory corruption in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-20005 and fix it if it is affected.

What it is: CVE-2019-20005 is a medium-severity memory corruption vulnerability in n/a, published on 26 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-20005 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-2019-20005/ (Markdown: https://insights.sbomify.com/CVE-2019-20005/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-20005
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-20005
- OSV: https://osv.dev/vulnerability/CVE-2019-20005

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-20005/
Summaries are generated and may contain mistakes; the official description above is the record.