UBUNTU-CVE-2014-6271

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UBUNTU-CVE-2014-6271

Summary:

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.

References: https://ubuntu.com/security/CVE-2014-6271, https://ubuntu.com/security/notices/USN-2362-1, https://www.cve.org/CVERecord?id=CVE-2014-6271, https://www.cisa.gov/known-exploited-vulnerabilities-catalog