Marc, I've just upgraded to 4.3.7-ubuntu1.2 in trusty (https://launchpad.net/ubuntu/+source/bash/4.3-7ubuntu1.2) which I assume was supposed to protect against the test case provided for CVE-2014-7169. It doesn't appear to have done so. Confirmed that the upgrade was successfully applied.
harry@mars:~ aptitude show bash | egrep '^Version' Version: 4.3-7ubuntu1.2 harry@mars:~$ md5sum /bin/bash Downloads/bash_4.3-7ubuntu1.2_amd64/bin/bash 3c263963be49239e113a5794d54b732a /bin/bash 3c263963be49239e113a5794d54b732a Downloads/bash_4.3-7ubuntu1.2_amd64/bin/bash harry@mars:~$ cat echo cat: echo: No such file or directory harry@mars:~$ env -i X='() { (a)=>\' bash -c 'echo date' bash: X: line 1: syntax error near unexpected token `=' bash: X: line 1: `' bash: error importing function definition for `X' harry@mars:~$ cat echo Fri Sep 26 00:38:09 BST 2014 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1373781 Title: bash incomplete fix for CVE-2014-6271 Status in “bash” package in Ubuntu: Confirmed Bug description: The fixes for CVE-2014-6271 do NOT work! Security vuln, but should be public, this is known already. Ubuntu 14.04 LTS: bash 4.3-7ubuntu1.1 Ubuntu 12.04 LTS: bash 4.2-2ubuntu2.2 Ubuntu 10.04 LTS: bash 4.1-2ubuntu3.1 Testcase: rm -f echo && env -i X='() { (a)=>\' bash -c 'echo id'; cat echo expected output: bash: X: line 1: syntax error near unexpected token `=' bash: X: line 1: `' bash: error importing function definition for `X' id actual output: bash: X: line 1: syntax error near unexpected token `=' bash: X: line 1: `' bash: error importing function definition for `X' uid=0(root) gid=0(root) groups=0(root) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1373781/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp