Public Date:
929255: CVE-2013-1900 postgresql: Improper randomization of pgcrypto functions (requiring random seed)

The MITRE CVE dictionary describes this issue as:

PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9, 9.0.x before 9.0.13, and 8.4.x before 8.4.17, when using OpenSSL, generates insufficiently random numbers, which might allow remote authenticated users to have an unspecified impact via vectors related to the "contrib/pgcrypto functions."

Find out more about CVE-2013-1900 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue affects the version of postgresql as shipped with Red Hat Enterprise Linux 5 and 6. This issue affects the version of postgresql84, as shipped with Red Hat Enterprise Linux 5. Red Hat Security Response Team has rated this issue as having low security impact. A future update might address this flaw.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 5 (postgresql84) RHSA-2013:1475 2013-10-29
Red Hat Enterprise Linux version 6 (postgresql) RHSA-2013:1475 2013-10-29

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 postgresql Fix deferred


Red Hat would like to thank the PostgreSQL project for reporting this issue. Upstream acknowledges Marko Kreen as the original issue reporter.