{"id":"UBUNTU-CVE-2014-6271","details":"GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka \"ShellShock.\"  NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.","modified":"2026-02-04T03:33:03.548250Z","published":"2014-09-24T00:00:00Z","related":["USN-2362-1"],"upstream":["CVE-2014-6271"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6271"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2362-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2014-6271"},{"type":"REPORT","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog"}],"affected":[{"package":{"name":"bash","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/bash@4.3-7ubuntu1.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3-7ubuntu1.1"}]}],"versions":["4.2-5ubuntu3","4.3-1ubuntu2","4.3-2ubuntu1","4.3-3ubuntu1","4.3-4ubuntu1","4.3-4ubuntu2","4.3-6ubuntu1","4.3-7ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3-7ubuntu1.1","binary_name":"bash"},{"binary_version":"4.3-7ubuntu1.1","binary_name":"bash-builtins"},{"binary_version":"4.3-7ubuntu1.1","binary_name":"bash-static"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2014/UBUNTU-CVE-2014-6271.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}