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Hi all,
while playing with Npgsql I faced an
strange behavior of Postgresql server.
I have all the details of it and I thought it could be a severe security
exploit, so I don't send it in clear to this mailing list directly as, I
think, anybody with this information could Dos postgresql servers.
Please, send me information to where/who I should send the details in
order this can be fixed as soon as possible.
This is the log I get when I receive the problem. I think that as server
is killing all processes, any client which can do that can kill all
client connections to that server. That's why I think it is very dangerous.
DEBUG: server process (PID 2874) was terminated by signal 11
LOG: server process (PID 2874) was terminated by signal 11
LOG: terminating any other active server processes
DEBUG: sending SIGQUIT to process 2111
DEBUG: sending SIGQUIT to process 2112
LOG: all server processes terminated; reinitializing
LOG: database system was interrupted at 2005-12-12 17:54:12 BRST
LOG: checkpoint record is at 0/38E290
LOG: redo record is at 0/38E290; undo record is at 0/0; shutdown TRUE
LOG: next transaction ID: 619; next OID: 24576
LOG: next MultiXactId: 1; next MultiXactOffset: 0
LOG: database system was not properly shut down; automatic recovery in
progress
LOG: record with zero length at 0/38E2D4
LOG: redo is not required
LOG: database system is ready
LOG: transaction ID wrap limit is 2147484148, limited by database
"postgres"
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Regards,
Francisco Figueiredo Jr.
Npgsql Lead Developer
http://www.pgfoundry.org/projects/npgsql
MonoBrasil Project Founder Member
http://monobrasil.softwarelivre.org
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"Science without religion is lame;
religion without science is blind."
~ Albert Einstein
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