Issued:
2012-06-25
Updated:
2012-06-25

RHSA-2012:1036 - Moderate: postgresql security update

Synopsis

Moderate: postgresql security update

Type/Severity

Security Advisory Moderate

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).

A flaw was found in the way the crypt() password hashing function from the optional PostgreSQL pgcrypto contrib module performed password transformation when used with the DES algorithm. If the password string to be hashed contained the 0x80 byte value, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. This made brute-force guessing more efficient as the whole password was not required to gain access to protected resources. (CVE-2012-2143)

Note: With this update, the rest of the string is properly included in the DES hash; therefore, any previously stored password values that are affected by this issue will no longer match. In such cases, it will be necessary for those stored password hashes to be updated.

Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of this issue.

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

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • postgresql-contrib-8.1.23-5.el5_8.s390x.rpm
  • postgresql-docs-8.1.23-5.el5_8.s390x.rpm
  • postgresql-server-8.1.23-5.el5_8.i386.rpm
  • postgresql-tcl-8.1.23-5.el5_8.i386.rpm
  • postgresql-devel-8.1.23-5.el5_8.ppc.rpm
  • postgresql-contrib-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-8.1.23-5.el5_8.src.rpm
  • postgresql-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-tcl-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-contrib-8.1.23-5.el5_8.ppc.rpm
  • postgresql-8.1.23-5.el5_8.ia64.rpm
  • postgresql-pl-8.1.23-5.el5_8.s390x.rpm
  • postgresql-pl-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-test-8.1.23-5.el5_8.ppc.rpm
  • postgresql-libs-8.1.23-5.el5_8.ppc64.rpm
  • postgresql-test-8.1.23-5.el5_8.i386.rpm
  • postgresql-python-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.ppc64.rpm
  • postgresql-docs-8.1.23-5.el5_8.ia64.rpm
  • postgresql-devel-8.1.23-5.el5_8.ppc64.rpm
  • postgresql-devel-8.1.23-5.el5_8.s390.rpm
  • postgresql-docs-8.1.23-5.el5_8.ppc.rpm
  • postgresql-python-8.1.23-5.el5_8.i386.rpm
  • postgresql-contrib-8.1.23-5.el5_8.i386.rpm
  • postgresql-test-8.1.23-5.el5_8.ia64.rpm
  • postgresql-server-8.1.23-5.el5_8.ppc.rpm
  • postgresql-python-8.1.23-5.el5_8.s390x.rpm
  • postgresql-server-8.1.23-5.el5_8.ia64.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.ppc.rpm
  • postgresql-python-8.1.23-5.el5_8.ppc.rpm
  • postgresql-devel-8.1.23-5.el5_8.i386.rpm
  • postgresql-test-8.1.23-5.el5_8.s390x.rpm
  • postgresql-8.1.23-5.el5_8.i386.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.ia64.rpm
  • postgresql-pl-8.1.23-5.el5_8.i386.rpm
  • postgresql-docs-8.1.23-5.el5_8.i386.rpm
  • postgresql-devel-8.1.23-5.el5_8.s390x.rpm
  • postgresql-python-8.1.23-5.el5_8.ia64.rpm
  • postgresql-server-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-libs-8.1.23-5.el5_8.ppc.rpm
  • postgresql-libs-8.1.23-5.el5_8.ia64.rpm
  • postgresql-8.1.23-5.el5_8.ppc.rpm
  • postgresql-contrib-8.1.23-5.el5_8.ia64.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.s390x.rpm
  • postgresql-pl-8.1.23-5.el5_8.ia64.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-pl-8.1.23-5.el5_8.ppc.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.i386.rpm
  • postgresql-8.1.23-5.el5_8.ppc64.rpm
  • postgresql-test-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-8.1.23-5.el5_8.s390x.rpm
  • postgresql-docs-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-libs-8.1.23-5.el5_8.s390.rpm
  • postgresql-tcl-8.1.23-5.el5_8.s390x.rpm
  • postgresql-devel-8.1.23-5.el5_8.ia64.rpm
  • postgresql-debuginfo-8.1.23-5.el5_8.s390.rpm
  • postgresql-tcl-8.1.23-5.el5_8.ppc.rpm
  • postgresql-server-8.1.23-5.el5_8.s390x.rpm
  • postgresql-libs-8.1.23-5.el5_8.s390x.rpm
  • postgresql-libs-8.1.23-5.el5_8.i386.rpm
  • postgresql-devel-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-libs-8.1.23-5.el5_8.x86_64.rpm
  • postgresql-tcl-8.1.23-5.el5_8.ia64.rpm

Fixes

CVEs

References

Additional information