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=========================================================== Ubuntu Security Notice USN-258-1 February 27, 2006 postgresql-7.4, postgresql-8.0, postgresql vulnerability CVE-2006-0678 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog) Ubuntu 5.10 (Breezy Badger) The following packages are affected: postgresql postgresql-7.4 postgresql-8.0 The problem can be corrected by upgrading the affected package to version 7.4.5-3ubuntu0.6 (for Ubuntu 4.10), 7.4.7-2ubuntu2.2 (for Ubuntu 5.04), 8.0.3-15ubuntu2.1 (postgresql-8.0 for Ubuntu 5.10), or 1:7.4.8-17ubuntu1.1 (postgresql-7.4 for Ubuntu 5.10). In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Akio Ishida discovered that the SET SESSION AUTHORIZATION command did not properly verify the validity of its argument. An authenticated PostgreSQL user could exploit this to crash the server. However, this does not affect the official binary Ubuntu packages. The crash can only be triggered if the source package is rebuilt with assertions enabled (which is not the case in the official binary packages).