Alerts This Week
Warning Icon 1 687
Alerts This Week
Warning Icon 1 687

Red Hat Enterprise Linux 5: RHSA-2011:1378-01 Moderate Password Issue

Redhat Large Esm H500
Updated postgresql84 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 [More...]
====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: postgresql84 security update
Advisory ID:       RHSA-2011:1378-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:1378.html
Issue date:        2011-10-17
CVE Names:         CVE-2011-2483 
====================================================================
1. Summary:

Updated postgresql84 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.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

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

A signedness issue was found in the way the crypt() function in the
PostgreSQL pgcrypto module handled 8-bit characters in passwords when using
Blowfish hashing. Up to three characters immediately preceding a non-ASCII
character (one with the high bit set) had no effect on the hash result,
thus shortening the effective password length. This made brute-force
guessing more efficient as several different passwords were hashed to the
same value. (CVE-2011-2483)

Note: Due to the CVE-2011-2483 fix, after installing this update some usersmay not be able to log in to applications that store user passwords, hashed
with Blowfish using the PostgreSQL crypt() function, in a back-end
PostgreSQL database. Unsafe processing can be re-enabled for specific
passwords (allowing affected users to log in) by changing their hash prefix
to "$2x$".

These updated postgresql84 packages upgrade PostgreSQL to version 8.4.9.
Refer to the PostgreSQL Release Notes for a full list of changes:

https://www.postgresql.org/docs/8.4/release.html

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

4. 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/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

715025 - CVE-2011-2483 crypt_blowfish: 8-bit character mishandling allows different password pairs to produce the same hash

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:

i386:
postgresql84-8.4.9-1.el5_7.1.i386.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.i386.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-docs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-python-8.4.9-1.el5_7.1.i386.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.i386.rpm

x86_64:
postgresql84-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-docs-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-libs-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-python-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:

i386:
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-devel-8.4.9-1.el5_7.1.i386.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.i386.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.i386.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.i386.rpm
postgresql84-server-8.4.9-1.el5_7.1.i386.rpm
postgresql84-test-8.4.9-1.el5_7.1.i386.rpm

x86_64:
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-devel-8.4.9-1.el5_7.1.i386.rpm
postgresql84-devel-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-server-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-test-8.4.9-1.el5_7.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
postgresql84-8.4.9-1.el5_7.1.i386.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.i386.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-devel-8.4.9-1.el5_7.1.i386.rpm
postgresql84-docs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.i386.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.i386.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.i386.rpm
postgresql84-python-8.4.9-1.el5_7.1.i386.rpm
postgresql84-server-8.4.9-1.el5_7.1.i386.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.i386.rpm
postgresql84-test-8.4.9-1.el5_7.1.i386.rpm

ia64:
postgresql84-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-devel-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-docs-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-libs-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-python-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-server-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.ia64.rpm
postgresql84-test-8.4.9-1.el5_7.1.ia64.rpm

ppc:
postgresql84-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-8.4.9-1.el5_7.1.ppc64.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.ppc64.rpm
postgresql84-devel-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-devel-8.4.9-1.el5_7.1.ppc64.rpm
postgresql84-docs-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-libs-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-libs-8.4.9-1.el5_7.1.ppc64.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-python-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-server-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.ppc.rpm
postgresql84-test-8.4.9-1.el5_7.1.ppc.rpm

s390x:
postgresql84-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.s390.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-devel-8.4.9-1.el5_7.1.s390.rpm
postgresql84-devel-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-docs-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-libs-8.4.9-1.el5_7.1.s390.rpm
postgresql84-libs-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-python-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-server-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.s390x.rpm
postgresql84-test-8.4.9-1.el5_7.1.s390x.rpm

x86_64:
postgresql84-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-contrib-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm
postgresql84-debuginfo-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-devel-8.4.9-1.el5_7.1.i386.rpm
postgresql84-devel-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-docs-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm
postgresql84-libs-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-plperl-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-plpython-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-pltcl-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-python-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-server-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-tcl-8.4.9-1.el5_7.1.x86_64.rpm
postgresql84-test-8.4.9-1.el5_7.1.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key#package

7. References:

https://access.redhat.com/security/cve/CVE-2011-2483
https://access.redhat.com/security/updates/classification#moderate
https://www.postgresql.org/docs/8.4/release.html

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2011 Red Hat, Inc.

Red Hat Enterprise Linux 5: RHSA-2011:1378-01 Moderate Password Issue

red hat
Calendar Grey October 17, 2011
Dist Redhat Esm H88
Newly released postgresql84 packages address a significant security vulnerability in Red Hat Enterprise Linux 5, which impacts the mechanism of password encryption.
Updated postgresql84 packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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/kb/docs/DOC-11259

Summary

PostgreSQL is an advanced object-relational database management system (DBMS).
A signedness issue was found in the way the crypt() function in the PostgreSQL pgcrypto module handled 8-bit characters in passwords when using Blowfish hashing. Up to three characters immediately preceding a non-ASCII character (one with the high bit set) had no effect on the hash result, thus shortening the effective password length. This made brute-force guessing more efficient as several different passwords were hashed to the same value. (CVE-2011-2483)
Note: Due to the CVE-2011-2483 fix, after installing this update some usersmay not be able to log in to applications that store user passwords, hashed with Blowfish using the PostgreSQL crypt() function, in a back-end PostgreSQL database. Unsafe processing can be re-enabled for specific passwords (allowing affected users to log in) by changing their hash prefix to "$2x$".
These updated postgresql84 packages upgrade PostgreSQL to version 8.4.9. Refer to the PostgreSQL Release Notes for a full list of changes:
https://www.postgresql.org/docs/8.4/release.html
All PostgreSQL users are advised to upgrade to these updated packages, which correct this issue. If the postgresql service is running, it will be automatically restarted after installing this update.

References

https://access.redhat.com/security/cve/CVE-2011-2483 https://access.redhat.com/security/updates/classification#moderate https://www.postgresql.org/docs/8.4/release.html

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: postgresql84-8.4.9-1.el5_7.1.i386.rpm postgresql84-contrib-8.4.9-1.el5_7.1.i386.rpm postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm postgresql84-docs-8.4.9-1.el5_7.1.i386.rpm postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm postgresql84-python-8.4.9-1.el5_7.1.i386.rpm postgresql84-tcl-8.4.9-1.el5_7.1.i386.rpm
x86_64: postgresql84-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-contrib-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm postgresql84-debuginfo-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-docs-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-libs-8.4.9-1.el5_7.1.i386.rpm postgresql84-libs-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-python-8.4.9-1.el5_7.1.x86_64.rpm postgresql84-tcl-8.4.9-1.el5_7.1.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm postgresql84-devel-8.4.9-1.el5_7.1.i386.rpm postgresql84-plperl-8.4.9-1.el5_7.1.i386.rpm postgresql84-plpython-8.4.9-1.el5_7.1.i386.rpm postgresql84-pltcl-8.4.9-1.el5_7.1.i386.rpm postgresql84-server-8.4.9-1.el5_7.1.i386.rpm postgresql84-test-8.4.9-1.el5_7.1.i386.rpm
x86_64: postgresql84-debuginfo-8.4.9-1.el5_7.1.i386.rpm postgresql84-debuginfo-8.4.9-1.el5_7.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:1378-01
Product: Red Hat Enterprise Linux
Issue date: 2011-10-17

Topic

Updated postgresql84 packages that fix one security issue are now availablefor Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

715025 - CVE-2011-2483 crypt_blowfish: 8-bit character mishandling allows different password pairs to produce the same hash

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here