# CVE-2009-2727: Memory corruption in n/a

> Remote attackers can execute arbitrary code on IBM AIX systems via a buffer overflow in the ToolTalk library when the rpc.ttdbserver daemon is enabled.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Aug 2009
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-g463-6wfq-2jp4

## What is CVE-2009-2727?

CVE-2009-2727 is a critical memory corruption vulnerability in Ibm Aix, published on 10 Aug 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Stack-based buffer overflow in the _tt_internal_realpath function in the ToolTalk library (libtt.a) in IBM AIX 5.2.0, 5.3.0, 5.3.7 through 5.3.10, and 6.1.0 through 6.1.3, when the rpc.ttdbserver daemon is enabled in /etc/inetd.conf, allows remote attackers to execute arbitrary code via a long XDR-encoded ASCII string to remote procedure 15.

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

## Which versions are affected by CVE-2009-2727?

It affects 1 product.


Products: Ibm Aix.

## How do I fix CVE-2009-2727?

No fix has been published for CVE-2009-2727 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-2727 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2727 exists.

Public exploit code:

- ToolTalk rpc.ttdbserverd _tt_internal_realpath Buffer Overflow (AIX) (metasploit)
- ToolTalk - rpc.ttdbserverd _tt_internal_realpath Buffer Overflow (AIX) (Metasploit) (exploitdb)

## Other vulnerabilities in Ibm Aix

- [CVE-2025-36250](https://insights.sbomify.com/CVE-2025-36250/): AIX Code Execution (critical 10.0)
- [CVE-2024-56346](https://insights.sbomify.com/CVE-2024-56346/): IBM AIX command execution (critical 10.0)
- [CVE-2010-3187](https://insights.sbomify.com/CVE-2010-3187/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-3699](https://insights.sbomify.com/CVE-2009-3699/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-3517](https://insights.sbomify.com/CVE-2009-3517/): Auth bypass in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-2727 and fix it if it is affected.

What it is: CVE-2009-2727 is a critical memory corruption vulnerability in Ibm Aix, published on 10 Aug 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2727 exists.

Affected product: Ibm Aix. 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-2009-2727/ (Markdown: https://insights.sbomify.com/CVE-2009-2727/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-2727
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-2727
- OSV: https://osv.dev/vulnerability/CVE-2009-2727

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-2727/
Summaries are generated and may contain mistakes; the official description above is the record.