CVE-2014-6271: remote code execution through bash

2014-09-24

GNU Bash 远程代码执行漏洞

“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.” states the description for the Bush Bug flaw on the NIST National Vulnerability Database which rated its severity as 10 out of 10.

What is the CVE-2014-6271 bash vulnerability, and how do I fix it?


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CVE-2014-6271: remote code execution through bash
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