# CVE-2019-13114: Null dereference in n/a

> A malicious HTTP server can crash the Exiv2 library by sending a crafted response lacking a space character, causing a denial of service.

- **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:** 30 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** ALPINE-CVE-2019-13114, CLEANSTART-2024-PV58059, DEBIAN-CVE-2019-13114, GHSA-7jp6-64vf-6wq3, PYSEC-2019-257, UBUNTU-CVE-2019-13114

## What is CVE-2019-13114?

CVE-2019-13114 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jun 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

http.c in Exiv2 through 0.27.1 allows a malicious http server to cause a denial of service (crash due to a NULL pointer dereference) by returning a crafted response that lacks a space character.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2019-13114?

1 open source package ship an affected version, including exiv2. It affects 4 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `exiv2` | PyPI | All versions | None |

Products: Canonical Ubuntu Linux, Debian Debian Linux, Exiv2 Exiv2, Fedoraproject Fedora.

## How do I fix CVE-2019-13114?

Upgrade to a fixed version.

## Is CVE-2019-13114 being exploited?

There is no known exploitation of CVE-2019-13114 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13114 and fix it if it is affected.

What it is: CVE-2019-13114 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jun 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-2019-13114 in the wild and no public exploit code.

Affected packages and fixed versions:
- exiv2 (PyPI): affected all versions; no fix listed

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-2019-13114/ (Markdown: https://insights.sbomify.com/CVE-2019-13114/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13114
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13114
- OSV: https://osv.dev/vulnerability/CVE-2019-13114

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-13114/
Summaries are generated and may contain mistakes; the official description above is the record.