TITLE:
NetBSD mail Insecure Record File Creation

SECUNIA ADVISORY ID:
SA19465

VERIFY ADVISORY:
http://secunia.com/advisories/19465/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
Local system

OPERATING SYSTEM:
NetBSD 1.x
http://secunia.com/product/255/

DESCRIPTION:
A security issue has been reported in NetBSD, which can be exploited
by malicious, local users to gain knowledge of potentially sensitive
information.

The problem is that the "mail" program creates record files with
insecure permissions when the "set record" setting is present in a
user's .mailrc and the default umask is set. This may allow other
users to read the record of a user's e-mail.

NOTE: By default systems are not affected as "set record" is not
present in .mailrc.

SOLUTION:
Fixes are not available for the 1.6 branch. Upgrade to a later
version for which fixes are available (see vendor advisory for
additional information).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Johan Veenhuizen.

ORIGINAL ADVISORY:
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-007.txt.asc

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