# CVE-2007-5268: Denial of service in n/a

> Remote attackers can cause a denial of service via a crafted PNG image due to logical errors in libpng, requiring user interaction to open the file.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:N/A:P`)
- **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:** No
- **Published:** 8 Oct 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-mpjr-rfjg-826r

## What is CVE-2007-5268?

CVE-2007-5268 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 8 Oct 2007. 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

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use (1) logical instead of bitwise operations and (2) incorrect comparisons, which might allow remote attackers to cause a denial of service (crash) via a crafted PNG image.

## Which versions are affected by CVE-2007-5268?

It affects 2 products.


Products: Canonical Ubuntu Linux, Libpng Libpng.

## How do I fix CVE-2007-5268?

No fix has been published for CVE-2007-5268 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-5268 being exploited?

There is no known exploitation of CVE-2007-5268 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-2007-5268 and fix it if it is affected.

What it is: CVE-2007-5268 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 8 Oct 2007. 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-2007-5268 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-2007-5268/ (Markdown: https://insights.sbomify.com/CVE-2007-5268/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-5268
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-5268
- OSV: https://osv.dev/vulnerability/CVE-2007-5268

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-5268/
Summaries are generated and may contain mistakes; the official description above is the record.