--- title: "CVE-2012-0884\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-2012-0884?format=md keywords: index, follow --- # CVE-2012-0884 Publication date 12 March 2012 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack. [Read the notes from the security team](https://ubuntu.com/security/CVE-2012-0884?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | openssl | 14.04 LTS trusty | Not affected | | 13.10 saucy | Not affected | | 13.04 raring | Not affected | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Fixed 1.0.0e-2ubuntu4.6 | | 11.04 natty | Fixed 0.9.8o-5ubuntu1.7 | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 0.9.8k-7ubuntu8.13 | | 8.04 LTS hardy | Fixed 0.9.8g-4ubuntu3.19 | | openssl098 | 14.04 LTS trusty | Fixed 0.9.8o-7ubuntu3.2.14.04.1 | | 13.10 saucy | Fixed 0.9.8o-7ubuntu3.2.13.10.1 | | 13.04 raring | Ignored end of life | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Fixed 0.9.8o-7ubuntu3.2 | | 11.10 oneiric | Ignored end of life | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | 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) * [Patch details](https://ubuntu.com/security/CVE-2012-0884?format=md#patch-details) ## Notes --- ### [sbeattie](https://launchpad.net/~sbeattie) only affects CMS, PKCS #7, or S/MIME decryption, not SSL/TLS transactions --- ### [mdeslaur](https://launchpad.net/~mdeslaur) from oss-security: "If a Linux distribution picks up the fix for CVE-2012-0884 then they will want to pick up change 22161 at the same time since the fix for the security vulnerability will generally cause symmetric decryption errors when it kicks in and things get very confusing for the end user without change 22161" A second issue was fixed too, see: http://www.openwall.com/lists/oss-security/2012/05/11/5 ### 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 | | --- | --- | | openssl | * Upstream: * Upstream: * Upstream: * Vendor: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0884) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-0884) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-0884) * [Debian](https://security-tracker.debian.org/tracker/CVE-2012-0884) ### Related Ubuntu Security Notices (USN) + [USN-1451-1](https://usn.ubuntu.com/USN-1451-1) + OpenSSL vulnerabilities + 24 May 2012 ### Other references * *