U radu programskog paketa postgresql84 uočena je sigurnosna ranjivost koja zlonamjernom korisniku omogućuje otkrivanje zaporki.
| Paket: | postgresql84 8.x |
| Operacijski sustavi: | Red Hat Enterprise Linux 5 |
| Kritičnost: | 3.7 |
| Problem: | pogreška u programskoj komponenti |
| Iskorištavanje: | lokalno/udaljeno |
| Posljedica: | otkrivanje osjetljivih informacija |
| Rješenje: | programska zakrpa proizvođača |
| CVE: | CVE-2011-2483 |
| Izvorni ID preporuke: | RHSA-2011:1378-01 |
| Izvor: | Red Hat |
| Problem: | |
| Ranjivost je posljedica neodgovarajućeg rukovanja 8-bitnim znakovima u komponenti crypt_blowfish. |
|
| Posljedica: | |
| Uspješna zlouporaba spomenute ranjivosti napadaču omogućuje otkrivanje zaporki. |
|
| Rješenje: | |
| Svim se korisnicima savjetuje korištenje novih programskih rješenja. |
|
Izvorni tekst preporuke
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=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: postgresql84 security update
Advisory ID: RHSA-2011:1378-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.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 users
may 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:
http://www.postgresql.org/docs/8.4/static/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:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/postgresql84-8.4.9-1.el5_7.1.src.rpm
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:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/postgresql84-8.4.9-1.el5_7.1.src.rpm
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:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/postgresql84-8.4.9-1.el5_7.1.src.rpm
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://www.redhat.com/security/data/cve/CVE-2011-2483.html
https://access.redhat.com/security/updates/classification/#moderate
http://www.postgresql.org/docs/8.4/static/release.html
8. Contact:
The Red Hat security contact is <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2011 Red Hat, Inc.
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