CVE-2014-6278

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary commands 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, CVE-2014-7169, and CVE-2014-6277.

Referanslar

• http://jvn.jp/en/jp/JVN55667175/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2014-000126
• http://lcamtuf.blogspot.com/2014/09/bash-bug-apply-unofficial-patch-now.html
• http://lcamtuf.blogspot.com/2014/10/bash-bug-how-we-finally-cracked.html
• http://linux.oracle.com/errata/ELSA-2014-3093
• http://linux.oracle.com/errata/ELSA-2014-3094