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Family: Mandrake Local Security Checks --> Category: infos

MDKSA-2002:062-1: postgresql Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the postgresql package

Detailed Explanation for this Vulnerability Test

The remote host is missing the patch for the advisory MDKSA-2002:062-1 (postgresql).

Vulnerabilities were discovered in the Postgresql relational database by Mordred
Labs. These vulnerabilities are buffer overflows in the rpad(), lpad(),
repeat(), and cash_words() functions. The Postgresql developers also fixed a
buffer overflow in functions that deal with time/date and timezone.
Finally, more buffer overflows were discovered by Mordred Labs in the 7.2.2
release that are currently only fixed in CVS. These buffer overflows exist in
the circle_poly(), path_encode(), and path_addr() functions.
In order for these vulnerabilities to be exploited, a possible hacker must be able to
query the server somehow. However, this cannot directly lead to root privilege
because the server runs as the postgresql user.
Prior to upgrading, users should dump their database and retain it as backup.
You can dump the database by using:
$ pg_dumpall > db.out
If you need to restore from the backup, you can do so by using:
$ psql -f db.out template1
The previous update missed a few small fixes, including a buffer overflow in the
cash_words() function that allows local users to cause a DoS and possibly
execute arbitrary code via a malformed argument in Postgresql 7.2 and earlier.
As well, buffer overflows in the TZ and SET TIME ZONE environment variables for
Postgresql 7.2.1 and earlier can allow local users to cause a DoS and possibly
execute arbitrary code.

Solution :
Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.


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