Oracle Linux 5 : postgresql84 (ELSA-2011-1378)

Medium Nessus Plugin ID 68371


The remote Oracle Linux host is missing one or more security updates.


From Red Hat Security Advisory 2011:1378 :

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.

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 :

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.


Update the affected postgresql84 packages.

See Also

Plugin Details

Severity: Medium

ID: 68371

File Name: oraclelinux_ELSA-2011-1378.nasl

Version: $Revision: 1.4 $

Type: local

Agent: unix

Published: 2013/07/12

Modified: 2016/05/06

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:postgresql84, p-cpe:/a:oracle:linux:postgresql84-contrib, p-cpe:/a:oracle:linux:postgresql84-devel, p-cpe:/a:oracle:linux:postgresql84-docs, p-cpe:/a:oracle:linux:postgresql84-libs, p-cpe:/a:oracle:linux:postgresql84-plperl, p-cpe:/a:oracle:linux:postgresql84-plpython, p-cpe:/a:oracle:linux:postgresql84-pltcl, p-cpe:/a:oracle:linux:postgresql84-python, p-cpe:/a:oracle:linux:postgresql84-server, p-cpe:/a:oracle:linux:postgresql84-tcl, p-cpe:/a:oracle:linux:postgresql84-test, cpe:/o:oracle:linux:5

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/10/18

Reference Information

CVE: CVE-2011-2483

BID: 49241

OSVDB: 74742

RHSA: 2011:1378