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TITLE:
PostgreSQL Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA28359

VERIFY ADVISORY:
http://secunia.com/advisories/28359/

CRITICAL:
Less critical

IMPACT:
Privilege escalation, DoS

WHERE:
>From local network

SOFTWARE:
PostgreSQL 7.x
http://secunia.com/product/506/
PostgreSQL 8.x
http://secunia.com/product/4587/

DESCRIPTION:
Some vulnerabilities have been reported in PostgreSQL, which can be
exploited by malicious users to gain escalated privileges or to cause
a DoS (Denial of Service).

1) Index functions are executed as superuser during "VACUUM" and
"ANALYZE", which can be exploited to gain escalated privileges.

2) "SET ROLE" and "SET SESSION AUTHORIZATION" are permitted within
index functions, which can be exploited to gain escalated
privileges.

3) Various errors in the processing of regular expressions within SQL
queries can be exploited to cause infinite loops, consume large
amounts of memory, or to crash the backend, resulting in a DoS.

4) Errors in the DBLink module can be exploited to gain superuser
privileges when being used in combination with local trust or ident
authentication.

The vulnerabilities are reported in versions 8.2, 8.1, 8.0, 7.4, and
7.3.

SOLUTION:
Update to version 8.2.6, 8.1.11, 8.0.15, 7.4.19, or 7.3.21.

Source code:
http://www.postgresql.org/ftp/source/

Binaries:
http://www.postgresql.org/ftp/binary/

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
PostgreSQL:
http://www.postgresql.org/about/news.905

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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