oss-security - Re: pam-pgsql NULL password handling issue

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Date: Wed, 16 Jan 2013 08:45:02 -0700
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Florian Weimer <fw@...eb.enyo.de>, Steven Christey <coley@...re.org>,
        Eygene Ryabinkin <rea@...ebsd.org>, Tomas Hoger <thoger@...hat.com>
Subject: Re: pam-pgsql NULL password handling issue

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On 01/15/2013 10:49 PM, Kurt Seifried wrote:
> On 01/15/2013 12:23 PM, Florian Weimer wrote:
>> Lucas Clemente Vella discovered that pam-pgsql (aka pam_pgsql) 
>> might allow login with any password the SQL query for the
>> password returns NULL.
> 
>> Bug report: <https://sourceforge.net/p/pam-pgsql/bugs/13/>
>> Patch: 
>> <https://sourceforge.net/u/lvella/pam-pgsql/ci/9361f5970e5dd90a747319995b67c2f73b91448c/>
>
>>  As usual, I'm not sure if this constitutes a security bug, but 
>> we'll probably fix this nevertheless if we get the opportunity.
> 
> Please use CVE-2013-0188 for this issue.
> 
> In general I think we take a strict line on password parsing, I
> can see programs that might create new accounts with a NULL
> password especially on the theory that the front end/etc forces a
> password to be entered that isn't NULL.

Argh I made a typo in the CVE assignment for Squid and accidentally
typed CVE-2013-0188 for it as well (normally I cut and paste, this is
why).

Please REJECT CVE-2013-0188.

Please use CVE-2013-0191 for the "pam-pgsql NULL password issue"

Please use CVE-2013-0189 for the "SQUID incomplete fix for CVE-2012-5643"

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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