--- title: "CVE-2009-2417\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-2009-2417?format=md keywords: index, follow --- # CVE-2009-2417 Publication date 14 August 2009 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description lib/ssluse.c in cURL and libcurl 7.4 through 7.19.5, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. ### From the Ubuntu Security Team sbeattie> hardy's patch for this issue was added to the end of the quilt series; unfortunately, the build system is quirky and pushes up patches by a name, thus the patch for this was not getting applied at build time. Fixed in usn-1158-1. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | curl | 9.04 jaunty | Fixed 7.18.2-8ubuntu4.1 | | 8.10 intrepid | Fixed 7.18.2-1ubuntu4.4 | | 8.04 LTS hardy | Fixed 7.18.0-1ubuntu2.3 | | 6.06 LTS dapper | Fixed 7.15.1-1ubuntu3.2 | --- * [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-2009-2417) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-2417) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-2417) * [Debian](https://security-tracker.debian.org/tracker/CVE-2009-2417) ### Related Ubuntu Security Notices (USN) + [USN-1158-1](https://usn.ubuntu.com/USN-1158-1) + curl vulnerabilities + 24 June 2011 + [USN-818-1](https://usn.ubuntu.com/USN-818-1) + curl vulnerability + 17 August 2009 ### Other references *