# CVE-2007-0012: Null dereference in n/a

> Remote attackers can crash Internet Explorer via a crafted applet object, causing a denial of service through a null pointer dereference in the Java plugin.

- **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:** 9 Jan 2008
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-5988-7686-p485

## What is CVE-2007-0012?

CVE-2007-0012 is a medium-severity vulnerability in Sun Jre, published on 9 Jan 2008. 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

Sun JRE 5.0 before update 14 allows remote attackers to cause a denial of service (Internet Explorer crash) via an object tag with an encoded applet and an undefined name attribute, which triggers a NULL pointer dereference in jpiexp32.dll when the applet is decoded and passed to the JVM.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2007-0012?

It affects 1 product.


Products: Sun Jre.

## How do I fix CVE-2007-0012?

No fix has been published for CVE-2007-0012 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-0012 being exploited?

There is no known exploitation of CVE-2007-0012 in the wild and no public exploit code.

## Other vulnerabilities in Sun Jre

- [CVE-2004-2764](https://insights.sbomify.com/CVE-2004-2764/): Information disclosure in n/a (critical 10.0)
- [CVE-2009-1671](https://insights.sbomify.com/CVE-2009-1671/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-1672](https://insights.sbomify.com/CVE-2009-1672/): Code injection in n/a (critical 9.3)
- [CVE-2005-3583](https://insights.sbomify.com/CVE-2005-3583/): Denial of service in n/a (high 7.8)
- [CVE-2009-3879](https://insights.sbomify.com/CVE-2009-3879/): Other in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-0012 and fix it if it is affected.

What it is: CVE-2007-0012 is a medium-severity vulnerability in Sun Jre, published on 9 Jan 2008. 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-2007-0012 in the wild and no public exploit code.

Affected product: Sun Jre. 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-2007-0012/ (Markdown: https://insights.sbomify.com/CVE-2007-0012/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-0012
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-0012
- OSV: https://osv.dev/vulnerability/CVE-2007-0012

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-0012/
Summaries are generated and may contain mistakes; the official description above is the record.