USN-369-2: postgresql-8.1 vulnerabilities

Ubuntu Security Notice USN-369-2

1st November, 2006

postgresql-8.1 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 6.10


USN-369-1 fixed three minor PostgreSQL 8.1 vulnerabilities for Ubuntu 6.06 LTS.
This update provides the corresponding update for Ubuntu 6.10.

Original advisory details:

Michael Fuhr discovered an incorrect type check when handling unknown
literals. By attempting to coerce such a literal to the ANYARRAY type,
a local authenticated attacker could cause a server crash. (CVE-2006-5541)

Josh Drake and Alvaro Herrera reported a crash when using aggregate
functions in UPDATE statements. A local authenticated attacker could
exploit this to crash the server backend. This update disables this
construct, since it is not very well defined and forbidden by the SQL
standard. (CVE-2006-5540)

Sergey Koposov discovered a flaw in the duration logging. This could
cause a server crash under certain circumstances. (CVE-2006-5542)

Please note that these flaws can usually not be exploited through web
and other applications that use a database and are exposed to
untrusted input, so these flaws do not pose a threat in usual setups.

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 6.10:
postgresql-8.1 8.1.4-7ubuntu0.1

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the
necessary changes.


CVE-2006-5540, CVE-2006-5541, CVE-2006-5542