Hello, useradd utility creates /var/spool/mail/$user with chmod 660 !! So, it is writable to group!! If users are in the same group (for example, users), they can to delete other users email(i tried it)!!!!! try useradd -g users user1 and look at /var/spool/mail ! Please, fix it as soon as possible, and email me with answer. Thank you Sincerely Martynas Bieliauskas
*** Bug 75418 has been marked as a duplicate of this bug. ***
*** Bug 77385 has been marked as a duplicate of this bug. ***
Not confirming nor denying this report, as I haven't tested it in 8.0, but I'm putting a hyperlink to the proposed patch into this bug report, so it is more accessible: https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=79325&action=view The rawhide packages should also be checked for this vulnerability as well as older releases. I tested Red Hat Linux 7.1 up2date and it doesn't appear affected.
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2003-057.html