PostgreSQL SET SESSION AUTHORIZATION command denial of service

postgresql-setsessionauth-dos (24719) The risk level is classified as LowLow Risk

Description:

PostgreSQL is vulnerable to a denial of service attack. If the database is configured with 'Asserts' enabled, an authenticated attacker could issue a SET SESSION AUTHORIZATION command to cause the database server to become temporarily unresponsive.

Platforms Affected:

  • Canonical, Ubuntu 4.10
  • Canonical, Ubuntu 5.04
  • Canonical, Ubuntu 5.10
  • PostgreSQL, PostgreSQL 7.3
  • PostgreSQL, PostgreSQL 7.3.1
  • PostgreSQL, PostgreSQL 7.3.10
  • PostgreSQL, PostgreSQL 7.3.11
  • PostgreSQL, PostgreSQL 7.3.12
  • PostgreSQL, PostgreSQL 7.3.13
  • PostgreSQL, PostgreSQL 7.3.2
  • PostgreSQL, PostgreSQL 7.3.3
  • PostgreSQL, PostgreSQL 7.3.4
  • PostgreSQL, PostgreSQL 7.3.5
  • PostgreSQL, PostgreSQL 7.3.6
  • PostgreSQL, PostgreSQL 7.3.7
  • PostgreSQL, PostgreSQL 7.3.8
  • PostgreSQL, PostgreSQL 7.3.9
  • PostgreSQL, PostgreSQL 7.4
  • PostgreSQL, PostgreSQL 7.4.1
  • PostgreSQL, PostgreSQL 7.4.10
  • PostgreSQL, PostgreSQL 7.4.11
  • PostgreSQL, PostgreSQL 7.4.2
  • PostgreSQL, PostgreSQL 7.4.3
  • PostgreSQL, PostgreSQL 7.4.4
  • PostgreSQL, PostgreSQL 7.4.5
  • PostgreSQL, PostgreSQL 7.4.6
  • PostgreSQL, PostgreSQL 7.4.7
  • PostgreSQL, PostgreSQL 7.4.8
  • PostgreSQL, PostgreSQL 7.4.9
  • PostgreSQL, PostgreSQL 8.0
  • PostgreSQL, PostgreSQL 8.0.1
  • PostgreSQL, PostgreSQL 8.0.2
  • PostgreSQL, PostgreSQL 8.0.3
  • PostgreSQL, PostgreSQL 8.0.4
  • PostgreSQL, PostgreSQL 8.0.5
  • PostgreSQL, PostgreSQL 8.0.6
  • PostgreSQL, PostgreSQL 8.1
  • PostgreSQL, PostgreSQL 8.1.1
  • PostgreSQL, PostgreSQL 8.1.2

Remedy:

Upgrade to the latest version of PostgreSQL (8.1.3 or later), (8.0.7 or later), (7.4.12 or later) or (7.3.14 or later), available from the PostgreSQL Web site. See references.

For Ubuntu Linux:
Refer to USN-258-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

  • BugTraq Mailing List, Wed Feb 15 2006 - 09:05:22 CST , PostgreSQL security releases 8.1.3, 8.0.7, 7.4.12, 7.3.14 at http://archives.neohapsis.com/archives/bugtraq/2006-02/0212.html.
  • PostgreSQL Web site, Downloads at http://www.postgresql.org/download/.
  • BID-16650: PostgreSQL Set Session Authorization Denial of Service Vulnerability
  • CVE-2006-0678: PostgreSQL 7.3.x before 7.3.14, 7.4.x before 7.4.12, 8.0.x before 8.0.7, and 8.1.x before 8.1.3, when compiled with Asserts enabled, allows local users to cause a denial of service (server crash) via a crafted SET SESSION AUTHORIZATION command, a different vulnerability than CVE-2006-0553.
  • SA18890: PostgreSQL Privilege Escalation and Denial of Service
  • SECTRACK ID: 1015636: PostgreSQL SET ROLE Validation Error Lets Remote Authenticated Users Obtain Elevated Privileges
  • USN-258-1: PostgreSQL vulnerability
  • VUPEN/ADV-2006-0605: PostgreSQL Privilege Escalation and Denial of Service Vulnerabilities

Reported:

Feb 15, 2006

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