DOSing PostgreSQL :-(

During my PostgreSQL coding last weekend I found a fairly horrible DOS in a library that PostgreSQL can be compiled with. It's totally exploitable to a DOS (double-free) in a PostgreSQL environment, and the user doesn't need to be authenticated to do it. The crashed backend will cause the postmaster to kick out all other backends and restart then - not good!

The good news is that it's not compiled-in by default, and even if you compile it in, you also have to explicitly enable it to become vulnerable.

Also, the guys with the library responded really fast (hours) and I expect a complete advisory along with a patched version to be out sometime the end of this week or beginning of next. At which times full details will be available...

In summary, there is nothing wrong with PostgreSQL here - it's just a vector to exploit the vulnerability in the library. So there will be no PostgreSQL security patch...


Conferences

I speak at and organize conferences around Open Source in general and PostgreSQL in particular.

Upcoming

SCALE+PGDays
Mar 2-5, 2017
Pasadena, California, USA
Open Source Infrastructure @ SCALE
Mar 2, 2017
Pasadena, California, USA
Confoo Montreal 2017
Mar 8-10, 2017
Montreal, Canada
Nordic PGDay 2017
Mar 21, 2017
Stockholm, Sweden
pgDay.paris 2017
Mar 23, 2017
Paris, France
PGCon 2017
May 23-26, 2017
Ottawa, Canada

Past

FOSDEM + PGDay 2017
Feb 2-4, 2017
Brussels, Belgium
PGConf.Asia 2016
Dec 2-3, 2016
Tokyo, Japan
Berlin PUG
Nov 17, 2016
Berlin, Germany
PGConf.EU 2016
Nov 1-4, 2016
Tallinn, Estonia
Stockholm PUG 2016/5
Oct 25, 2016
Stockholm, Sweden
More past conferences