USN-568-1: PostgreSQL vulnerabilities

Ubuntu Security Notice USN-568-1

14th January, 2008

postgresql vulnerabilities

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

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software description

  • postgresql-8.1
  • postgresql-8.2

Details

Nico Leidecker discovered that PostgreSQL did not properly
restrict dblink functions. An authenticated user could exploit
this flaw to access arbitrary accounts and execute arbitrary
SQL queries. (CVE-2007-3278, CVE-2007-6601)

It was discovered that the TCL regular expression parser used
by PostgreSQL did not properly check its input. An attacker
could send crafted regular expressions to PostgreSQL and cause
a denial of service via resource exhaustion or database crash.
(CVE-2007-4769, CVE-2007-4772, CVE-2007-6067)

It was discovered that PostgreSQL executed VACUUM and ANALYZE
operations within index functions with superuser privileges and
also allowed SET ROLE and SET SESSION AUTHORIZATION within index
functions. A remote authenticated user could exploit these flaws
to gain privileges. (CVE-2007-6600)

Update instructions

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

Ubuntu 7.10:
postgresql-8.2 8.2.6-0ubuntu0.7.10.1
postgresql-pltcl-8.2 8.2.6-0ubuntu0.7.10.1
Ubuntu 7.04:
postgresql-8.2 8.2.6-0ubuntu0.7.04.1
postgresql-pltcl-8.2 8.2.6-0ubuntu0.7.04.1
Ubuntu 6.10:
postgresql-8.1 8.1.11-0ubuntu0.6.10.1
postgresql-pltcl-8.1 8.1.11-0ubuntu0.6.10.1
Ubuntu 6.06 LTS:
postgresql-8.1 8.1.11-0ubuntu0.6.06.1
postgresql-pltcl-8.1 8.1.11-0ubuntu0.6.06.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2007-3278, CVE-2007-4769, CVE-2007-4772, CVE-2007-6067, CVE-2007-6600, CVE-2007-6601