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CVE-2014-6271

Published: 24 September 2014

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.

Notes

AuthorNote
mdeslaur
After updates were released for this issue, it was discovered
that the fix was incomplete. The new issue is being tracked
as CVE-2014-7169.

Priority

High

CVSS 3 base score: 9.8

Status

Package Release Status
bash
Launchpad, Ubuntu, Debian
upstream Needs triage

lucid
Released (4.1-2ubuntu3.1)
precise
Released (4.2-2ubuntu2.2)
trusty
Released (4.3-7ubuntu1.1)