--- title: "CVE-2009-2661\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-2009-2661?format=md keywords: index, follow --- # CVE-2009-2661 Publication date 4 August 2009 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The asn1\_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which allows remote attackers to cause a denial of service (pluto IKE daemon crash) via malformed ASN.1 data. NOTE: this is due to an incomplete fix for CVE-2009-2185. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | strongswan | 11.10 oneiric | Not affected | | 11.04 natty | Not affected | | 10.10 maverick | Not affected | | 10.04 LTS lucid | Not affected | | 9.10 karmic | Ignored end of life | | 9.04 jaunty | Ignored end of life | | 8.10 intrepid | Ignored end of life, was needs-triage | | 8.04 LTS hardy | Ignored end of life | | 6.06 LTS dapper | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2661) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-2661) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-2661) * [Debian](https://security-tracker.debian.org/tracker/CVE-2009-2661) ### Other references *