# CVE-2005-4807: Memory corruption in n/a

> Attackers can execute arbitrary code by tricking users into compiling a malicious C file with crafted inline assembly using the GNU as assembler.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **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 2006
- **Updated:** 8 Aug 2024
- **Also known as:** DEBIAN-CVE-2005-4807, GHSA-f884-r5wp-g6v3

## What is CVE-2005-4807?

CVE-2005-4807 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 18 Aug 2006. 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

Stack-based buffer overflow in the as_bad function in messages.c in the GNU as (gas) assembler in Free Software Foundation GNU Binutils before 20050721 allows attackers to execute arbitrary code via a .c file with crafted inline assembly code.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2005-4807?

It affects 2 products.


Products: Canonical Ubuntu Linux, Gnu Binutils.

## How do I fix CVE-2005-4807?

Upgrade to a fixed version.

## Is CVE-2005-4807 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2005-4807 exists.

Public exploit code:

- GNU BinUtils 2.1x - GAS Buffer Overflow (exploitdb)

## 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-2005-4807 and fix it if it is affected.

What it is: CVE-2005-4807 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 18 Aug 2006. 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2005-4807 exists.

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-2005-4807/ (Markdown: https://insights.sbomify.com/CVE-2005-4807/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2005-4807
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2005-4807
- OSV: https://osv.dev/vulnerability/CVE-2005-4807

---
From sbomify Insights: https://insights.sbomify.com/CVE-2005-4807/
Summaries are generated and may contain mistakes; the official description above is the record.