Bug 75418 - useradd creates group readable/writable mailspool file
Summary: useradd creates group readable/writable mailspool file
Status: CLOSED DUPLICATE of bug 59810
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: shadow-utils (Show other bugs)
(Show other bugs)
Version: 7.3
Hardware: i386 Linux
Target Milestone: ---
Assignee: Nalin Dahyabhai
QA Contact: David Lawrence
Keywords: Security
Depends On:
TreeView+ depends on / blocked
Reported: 2002-10-08 10:11 UTC by Jarno Huuskonen
Modified: 2007-03-27 03:57 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2006-02-21 18:49:47 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Patch from Owl for securely creating the mailspool file (1.17 KB, patch)
2002-10-08 10:13 UTC, Jarno Huuskonen
no flags Details | Diff

Description Jarno Huuskonen 2002-10-08 10:11:17 UTC
Description of Problem:
useradd creates /var/spool/mail/username mailspool file with mode 0660, so
if the users primary group is a shared group eg. users then all other group
members can read/write the poor users mails.

Version-Release number of selected component (if applicable):

How Reproducible:

Steps to Reproduce:
1. useradd -g users somebody

Actual Results:
/var/spool/mail/somebody is owned by somebody:users and is mode 0660

Expected Results:
/var/spool/mail/somebody should not be readable/writable by users group !

Additional Information:
This bug is a duplicate of 59810. This one just applies to RH 7.3. I also
checked the latest rawhide shadow-utils and it still has the same buggy
shadow-20000902-mailspool.patch patch.

Owl has a patch for "correctly" creating the mailspool. That patch applies to
shadow-utils-20000902-7 with minimal changes. I'll attach the patch.

Comment 1 Jarno Huuskonen 2002-10-08 10:13:49 UTC
Created attachment 79325 [details]
Patch from Owl for securely creating the mailspool file

Comment 2 Alan Cox 2002-12-18 18:03:50 UTC

*** This bug has been marked as a duplicate of 59810 ***

Comment 3 Red Hat Bugzilla 2006-02-21 18:49:47 UTC
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.

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