RHSA-2014:0249 - Security Advisory

Topic

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

The Red Hat Security Response Team has rated this update as having
Important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

Description

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

Multiple stack-based buffer overflow flaws were found in the date/time
implementation of PostgreSQL. An authenticated database user could provide
a specially crafted date/time value that, when processed, could cause
PostgreSQL to crash or, potentially, execute arbitrary code with the
permissions of the user running PostgreSQL. (CVE-2014-0063)

Multiple integer overflow flaws, leading to heap-based buffer overflows,
were found in various type input functions in PostgreSQL. An authenticated
database user could possibly use these flaws to crash PostgreSQL or,
potentially, execute arbitrary code with the permissions of the user
running PostgreSQL. (CVE-2014-0064)

Multiple potential buffer overflow flaws were found in PostgreSQL.
An authenticated database user could possibly use these flaws to crash
PostgreSQL or, potentially, execute arbitrary code with the permissions of
the user running PostgreSQL. (CVE-2014-0065)

It was found that granting an SQL role to a database user in a PostgreSQL
database without specifying the "ADMIN" option allowed the grantee to
remove other users from their granted role. An authenticated database user
could use this flaw to remove a user from an SQL role which they were
granted access to. (CVE-2014-0060)

A flaw was found in the validator functions provided by PostgreSQL's
procedural languages (PLs). An authenticated database user could possibly
use this flaw to escalate their privileges. (CVE-2014-0061)

A race condition was found in the way the CREATE INDEX command performed
multiple independent lookups of a table that had to be indexed. An
authenticated database user could possibly use this flaw to escalate their
privileges. (CVE-2014-0062)

It was found that the chkpass extension of PostgreSQL did not check the
return value of the crypt() function. An authenticated database user could
possibly use this flaw to crash PostgreSQL via a null pointer dereference.
(CVE-2014-0066)

Red Hat would like to thank the PostgreSQL project for reporting these
issues. Upstream acknowledges Noah Misch as the original reporter of
CVE-2014-0060 and CVE-2014-0063, Heikki Linnakangas and Noah Misch as the
original reporters of CVE-2014-0064, Peter Eisentraut and Jozef Mlich as
the original reporters of CVE-2014-0065, Andres Freund as the original
reporter of CVE-2014-0061, Robert Haas and Andres Freund as the original
reporters of CVE-2014-0062, and Honza Horak and Bruce Momjian as the
original reporters of CVE-2014-0066.

All PostgreSQL users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. 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/site/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 - 1065219 - CVE-2014-0060 postgresql: SET ROLE without ADMIN OPTION allows adding and removing group members
• BZ - 1065220 - CVE-2014-0061 postgresql: privilege escalation via procedural language validator functions
• BZ - 1065222 - CVE-2014-0062 postgresql: CREATE INDEX race condition possibly leading to privilege escalation
• BZ - 1065226 - CVE-2014-0063 postgresql: stack-based buffer overflow in datetime input/output
• BZ - 1065230 - CVE-2014-0064 postgresql: integer overflows leading to buffer overflows
• BZ - 1065235 - CVE-2014-0065 postgresql: possible buffer overflow flaws
• BZ - 1065236 - CVE-2014-0066 postgresql: NULL pointer dereference

CVEs

• CVE-2014-0066
• CVE-2014-0064
• CVE-2014-0065
• CVE-2014-0062
• CVE-2014-0063
• CVE-2014-0060
• CVE-2014-0061

References

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