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[USN-1789-1] PostgreSQL vulnerabilities

Posted on 04 April 2013
Ubuntu Security

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Ubuntu Security Notice USN-1789-1
April 04, 2013

postgresql-8.3, postgresql-8.4, postgresql-9.1 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Several security issues were fixed in PostgreSQL.

Software Description:
- postgresql-9.1: Object-relational SQL database
- postgresql-8.4: Object-relational SQL database
- postgresql-8.3: 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 t=
o
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 privile=
ge
checks. An unprivileged attacker could use this flaw to possibly interfer=
e
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 12.10:
postgresql-9.1 9.1.9-0ubuntu12.10

Ubuntu 12.04 LTS:
postgresql-9.1 9.1.9-0ubuntu12.04

Ubuntu 11.10:
postgresql-9.1 9.1.9-0ubuntu11.10

Ubuntu 10.04 LTS:
postgresql-8.4 8.4.17-0ubuntu10.04

Ubuntu 8.04 LTS:
postgresql-8.3 8.3.23-0ubuntu8.04.1

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:
http://www.ubuntu.com/usn/usn-1789-1
CVE-2013-1899, CVE-2013-1900, CVE-2013-1901

Package Information:
https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.9-0ubuntu12.10
https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.9-0ubuntu12.04
https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.9-0ubuntu11.10
https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.17-0ubuntu10.04=

https://launchpad.net/ubuntu/+source/postgresql-8.3/8.3.23-0ubuntu8.04.=
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