Re: [GENERAL] PostgreSQL 7.2.2: Security Release - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [GENERAL] PostgreSQL 7.2.2: Security Release
Date
Msg-id 200208251434.g7PEYT712817@candle.pha.pa.us
Whole thread Raw
In response to Re: [GENERAL] PostgreSQL 7.2.2: Security Release  (Gavin Sherry <swm@linuxworld.com.au>)
Responses Re: [GENERAL] PostgreSQL 7.2.2: Security Release
List pgsql-hackers
OK, I understand your point.  What do we need to do now that the
announcement has already been made?

---------------------------------------------------------------------------

Gavin Sherry wrote:
> On Sat, 24 Aug 2002, Bruce Momjian wrote:
> 
> > 
> > The issue is data-provoked crashes vs. query-invoked crashes.  Marc's
> > point, and I think it was clear enough, is that you can't just poke at
> > the TCP port and hope to do anything bad, which was the thrust of the
> > argument, I think.
> 
> Bruce,
> 
> I am convinced that someone with enough time on their hands and some code
> pointed to by Florian Weimer could exploit the datetime overrun issue by
> crafting a datetime string in such a way as to overrun the buffer and
> smash the stack.
> 
> In applications which pass date/time data directly to the database without
> any validation (is this datetime string greater than 52 bytes? does it
> look like a date/time string?) then a malicious user without direct
> database access could crash the database by taking advantage of the short
> comings in Postgres and the application.
> 
> As such, I would recommend all people who offer direct access to the
> database and/or have applications which user date/time data
> types/functionality to upgrade to 7.2.2.
> 
> Gavin
> 
> 
> 
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--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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