Package : bsd-mailx Version : 8.1.2-0.20100314cvs-1+deb6u1 CVE ID : CVE-2014-7844 It was discovered that bsd-mailx, an implementation of the "mail" command, had an undocumented feature which treats syntactically valid email addresses as shell commands to execute. Users who need this feature can re-enable it using the "expandaddr" in an appropriate mailrc file. This update also removes the obsolete -T option. An older security vulnerability, CVE-2004-2771, had already been addressed in the Debian's bsd-mailx package. Note that this security update does not remove all mailx facilities for command execution, though. Scripts which send mail to addresses obtained from an untrusted source (such as a web form) should use the "--" separator before the email addresses (which was fixed to work properly in this update), or they should be changed to invoke "mail -t" or "sendmail -i -t" instead, passing the recipient addresses as part of the mail header. For the oldstable distribution (squeeze), this problem has been fixed in version 8.1.2-0.20100314cvs-1+deb6u1. We recommend that you upgrade your bsd-mailx packages. -- Raphaël Hertzog ◈ Debian Developer Support Debian LTS: http://www.freexian.com/services/debian-lts.html Learn to master Debian: http://debian-handbook.info/get/
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