---
title: "CVE-2009-0125\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2009-0125?format=md
keywords: index, follow
---

# CVE-2009-0125

Publication date 15 January 2009

Last updated 4 August 2025

---

Ubuntu priority

**Negligible**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

NOTE: this issue has been disputed by the upstream vendor.
nasl/nasl\_crypto2.c in the Nessus Attack Scripting Language library (aka
libnasl) 2.2.11 does not properly check the return value from the OpenSSL
DSA\_do\_verify function, which allows remote attackers to bypass validation
of the certificate chain via a malformed SSL/TLS signature, a similar
vulnerability to CVE-2008-5077. NOTE: the upstream vendor has disputed
this issue, stating "while we do misuse this function (this is a bug), it
has absolutely no security ramification.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2009-0125?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libnasl | 8.10 intrepid | Ignored |
| 8.04 LTS hardy | Ignored |
| 7.10 gutsy | Ignored |
| 6.06 LTS dapper | Ignored |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2009-0125?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

related to CVE-2008-5077
upstream says no security ramifications:
http://attrition.org/pipermail/vim/2009-January/002133.html
let's ignore this

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| libnasl | * Vendor:   <https://bugzilla.redhat.com/show_bug.cgi?id=479655> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0125)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-0125)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-0125)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2009-0125)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2009-0125>