--- title: "CVE-2009-1904\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-2009-1904?format=md keywords: index, follow --- # CVE-2009-1904 Publication date 11 June 2009 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The BigDecimal library in Ruby 1.8.6 before p369 and 1.8.7 before p173 allows context-dependent attackers to cause a denial of service (application crash) via a string argument that represents a large number, as demonstrated by an attempted conversion to the Float data type. [Read the notes from the security team](https://ubuntu.com/security/CVE-2009-1904?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | ruby1.8 | 11.10 oneiric | Not affected | | 11.04 natty | Not affected | | 10.10 maverick | Not affected | | 10.04 LTS lucid | Not affected | | 9.10 karmic | Not affected | | 9.04 jaunty | Fixed 1.8.7.72-3ubuntu0.1 | | 8.10 intrepid | Fixed 1.8.7.72-1ubuntu0.2 | | 8.04 LTS hardy | Fixed 1.8.6.111-2ubuntu1.3 | | 6.06 LTS dapper | Fixed 1.8.4-1ubuntu1.7 | | ruby1.9 | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 1.9.0.5-1ubuntu2 | | 9.10 karmic | Fixed 1.9.0.5-1ubuntu1.2 | | 9.04 jaunty | Fixed 1.9.0.2-9ubuntu1.1 | | 8.10 intrepid | Fixed 1.9.0.2-7ubuntu1.2 | | 8.04 LTS hardy | Ignored end of life | | 6.06 LTS dapper | Ignored end of life | --- * [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-2009-1904?format=md#patch-details) ## Notes --- ### [mdeslaur](https://launchpad.net/~mdeslaur) PoC here: http://github.com/NZKoz/bigdecimal-segfault-fix/tree/master PoC here: http://www.ruby-lang.org/en/news/2009/06/09/dos-vulnerability-in-bigdecimal/ best PoC here: http://redmine.ruby-lang.org/issues/show/794 backporting patch may introduce regression, see RH bug ### 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 | | --- | --- | | ruby1.8 | * Upstream: * Upstream: * Upstream: * Upstream: [95c0abb](http://github.com/rubyspec/rubyspec/commit/95c0abbe07bf350f83d2454eb080b0bd315d59d4) * Upstream: [0fb6052](http://github.com/rubyspec/rubyspec/commit/0fb6052d48eeb72c6f2d2239bba999038cad3d69) | | ruby1.9 | * Upstream: * Upstream: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1904) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-1904) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-1904) * [Debian](https://security-tracker.debian.org/tracker/CVE-2009-1904) ### Related Ubuntu Security Notices (USN) + [USN-900-1](https://usn.ubuntu.com/USN-900-1) + Ruby vulnerabilities + 16 February 2010 + [USN-805-1](https://usn.ubuntu.com/USN-805-1) + Ruby vulnerabilities + 20 July 2009 ### Other references * *