# CVE-2019-15145: Denial of service in n/a

> Attackers can cause a denial-of-service crash in DjVuLibre by providing a corrupted JB2 image file that triggers an out-of-bounds read.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 18 Aug 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-15145, GHSA-fhqx-x8f6-2w5w, UBUNTU-CVE-2019-15145

## What is CVE-2019-15145?

CVE-2019-15145 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Aug 2019. 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

DjVuLibre 3.5.27 allows attackers to cause a denial-of-service attack (application crash via an out-of-bounds read) by crafting a corrupted JB2 image file that is mishandled in JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h because of a missing zero-bytes check in libdjvu/GBitmap.h.

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

## Which versions are affected by CVE-2019-15145?

It affects 5 products.


Products: Canonical Ubuntu Linux, Debian Debian Linux, Djvulibre Project Djvulibre, Fedoraproject Fedora, Opensuse Leap.

## How do I fix CVE-2019-15145?

Upgrade to a fixed version.

## Is CVE-2019-15145 being exploited?

There is no known exploitation of CVE-2019-15145 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-2019-15145 and fix it if it is affected.

What it is: CVE-2019-15145 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Aug 2019. 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-2019-15145 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2019-15145/ (Markdown: https://insights.sbomify.com/CVE-2019-15145/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15145
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15145
- OSV: https://osv.dev/vulnerability/CVE-2019-15145

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-15145/
Summaries are generated and may contain mistakes; the official description above is the record.