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CVE-2014-7169

Published: 25 September 2014

GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact 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. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.

Notes

AuthorNote
mdeslaur
It was discovered that a build issue preventing the fix
from being applied properly in the 4.3-7ubuntu1.2 package for
Ubuntu 14.04 LTS. A respin was released to 4.3-7ubuntu1.3 to
correct the issue, and USN-2363-2 was published.

Priority

High

Status

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

lucid
Released (4.1-2ubuntu3.2)
precise
Released (4.2-2ubuntu2.3)
trusty
Released (4.3-7ubuntu1.3)
Patches:
proposed: http://www.openwall.com/lists/oss-security/2014/09/25/10