RHSA-2012:1264 - Security Advisory

Topic

Updated postgresql packages that fix one security issue are now available
for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

PostgreSQL is an advanced object-relational database management system
(DBMS).

It was found that the optional PostgreSQL xml2 contrib module allowed local
files and remote URLs to be read and written to with the privileges of the
database server when parsing Extensible Stylesheet Language Transformations
(XSLT). An unprivileged database user could use this flaw to read and write
to local files (such as the database's configuration files) and remote URLs
they would otherwise not have access to by issuing a specially-crafted SQL
query. (CVE-2012-3488)

Red Hat would like to thank the PostgreSQL project for reporting this
issue. Upstream acknowledges Peter Eisentraut as the original reporter.

All PostgreSQL users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. If the postgresql
service is running, it will be automatically restarted after installing
this update.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 849172 - CVE-2012-3488 postgresql (xml2 contrib module): XXE by applying XSL stylesheet to the document

CVEs

• CVE-2012-3488

References

• https://access.redhat.com/security/updates/classification/#moderate