Bug 166528 - CAN-2004-2394 CAN-2004-2395 CAN-2004-2396 multiple passwd issues
Summary: CAN-2004-2394 CAN-2004-2395 CAN-2004-2396 multiple passwd issues
Keywords:
Status: CLOSED NEXTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: passwd
Version: 3.0
Hardware: All
OS: Linux
medium
high
Target Milestone: ---
Assignee: Tomas Mraz
QA Contact: Mike McLean
URL:
Whiteboard: impact=low,source=bugzilla,reported=2...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-08-22 22:45 UTC by Josh Bressers
Modified: 2007-11-30 22:07 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2005-10-12 17:45:48 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)

Description Josh Bressers 2005-08-22 22:45:56 UTC
+++ This bug was initially created as a clone of Bug #120060 +++

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.4.2)
Gecko/20040308

Description of problem:
During a code review, I found several issues with the programs in the
passwd rpm. Notibly, the passwd program has an off by 1 in the case of
--stdin. buffer is 80, len passed to read is 79, location 78 is 0'ed.
This is more noticeable if you imagine i == 1 after read. Also, if
read returns an error, the program continues as if nothing bad
happened and tries to zero buffer[-2];

Also, pam_start was not being checked for its return code.

Various minor memory leaks.

Version-Release number of selected component (if applicable):
passwd-0.68

How reproducible:
Always

Steps to Reproduce:
Found during code review.
    

Additional info:

I will attach a patch that fixes these. I did not look at prior
versions to see if these issues exist.



Please see the parent bug for a patch.

Comment 1 Josh Bressers 2005-08-22 22:46:47 UTC
This issue also affects RHEL2.1

Comment 4 Tomas Mraz 2005-10-12 17:45:48 UTC
These issues are fixed in RHEL4 and aren't worth/safe fixing in RHEL3/2.1.



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