USN-1789-1: PostgreSQL vulnerabilities

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• postgresql-8.3 - Object-relational SQL database
• postgresql-8.4 - Object-relational SQL database
• postgresql-9.1 - Object-relational SQL database

Details

Mitsumasa Kondo and Kyotaro Horiguchi discovered that PostgreSQL
incorrectly handled certain connection requests containing database names
starting with a dash. A remote attacker could use this flaw to damage or
destroy files within a server's data directory. This issue only applied to
Ubuntu 11.10, Ubuntu 12.04 LTS, and Ubuntu 12.10. (CVE-2013-1899)

Marko Kreen discovered that PostgreSQL incorrectly generated random
numbers. An authenticated attacker could use this flaw to possibly guess
another database user's random numbers. (CVE-2013-1900)

Noah Misch discovered that PostgreSQL incorrectly handled certain privilege
checks. An unprivileged attacker could use this flaw to possibly interfere
with in-progress backups. This issue only applied to Ubuntu 11.10,
Ubuntu 12.04 LTS, and Ubuntu 12.10. (CVE-2013-1901)

Update instructions

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

Ubuntu 8.04

• postgresql-8.3 - 8.3.23-0ubuntu8.04.1

Ubuntu 12.10

• postgresql-9.1 - 9.1.9-0ubuntu12.10

Ubuntu 12.04

• postgresql-9.1 - 9.1.9-0ubuntu12.04

Ubuntu 11.10

• postgresql-9.1 - 9.1.9-0ubuntu11.10

Ubuntu 10.04

• postgresql-8.4 - 8.4.17-0ubuntu10.04

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

• CVE-2013-1899
• CVE-2013-1900
• CVE-2013-1901