RHEL 6 : rh-postgresql95-postgresql (RHSA-2017:2425)

high Nessus Plugin ID 210311

Synopsis

The remote Red Hat host is missing one or more security updates for rh-postgresql95-postgresql.

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2425 advisory.

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

The following packages have been upgraded to a later upstream version: rh-postgresql95-postgresql (9.5.7).
(BZ#1449701)

Security Fix(es):

* A flaw was found in the way PostgreSQL server handled certain SQL statements containing CASE/WHEN commands. A remote, authenticated attacker could use a specially crafted SQL statement to cause PostgreSQL to crash or disclose a few bytes of server memory or possibly execute arbitrary code. (CVE-2016-5423)

* A flaw was found in the way PostgreSQL client programs handled database and role names containing newlines, carriage returns, double quotes, or backslashes. By crafting such an object name, roles with the CREATEDB or CREATEROLE option could escalate their privileges to superuser when a superuser next executes maintenance with a vulnerable client program. (CVE-2016-5424)

* It was found that some selectivity estimation functions did not check user privileges before providing information from pg_statistic, possibly leaking information. A non-administrative database user could use this flaw to steal some information from tables they are otherwise not allowed to access. (CVE-2017-7484)

* It was discovered that the PostgreSQL client library (libpq) did not enforce the use of TLS/SSL for a connection to a PostgreSQL server when the PGREQUIRESSL environment variable was set. An man-in-the-middle attacker could use this flaw to strip the SSL/TLS protection from a connection between a client and a server. (CVE-2017-7485)

* It was found that the pg_user_mappings view could disclose information about user mappings to a foreign database to non-administrative database users. A database user with USAGE privilege for this mapping could, when querying the view, obtain user mapping data, such as the username and password used to connect to the foreign database. (CVE-2017-7486)

Red Hat would like to thank the PostgreSQL project for reporting these issues. Upstream acknowledges Robert Haas as the original reporter of CVE-2017-7484; Daniel Gustafsson as the original reporter of CVE-2017-7485; and Andrew Wheelwright as the original reporter of CVE-2017-7486.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL rh-postgresql95-postgresql package based on the guidance in RHSA-2017:2425.

Plugin Details

Severity: High

ID: 210311

File Name: redhat-RHSA-2017-2425.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/5/2024

Updated: 11/5/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2016-5423

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.2

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-package-push-server, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-postgresql-server, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:spacewalk-dobby, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-sql-postgresql, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-app, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-libs, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-xmlrpc, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-postgresql-pltcl, p-cpe:/a:redhat:enterprise_linux:spacewalk-utils, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-config-files, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-runtime, p-cpe:/a:redhat:enterprise_linux:spacewalk-base-minimal, p-cpe:/a:redhat:enterprise_linux:spacewalk-sniglets, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-postgresql-contrib, p-cpe:/a:redhat:enterprise_linux:spacewalk-base, p-cpe:/a:redhat:enterprise_linux:spacewalk-pxt, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-config-files-common, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-postgresql-libs, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend, p-cpe:/a:redhat:enterprise_linux:spacewalk-setup-postgresql, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-sql-oracle, p-cpe:/a:redhat:enterprise_linux:spacewalk-html, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-server, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-iss-export, p-cpe:/a:redhat:enterprise_linux:spacewalk-grail, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-xml-export-libs, p-cpe:/a:redhat:enterprise_linux:spacewalk-web, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-iss, p-cpe:/a:redhat:enterprise_linux:spacewalk-base-minimal-config, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-sql, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-applet, p-cpe:/a:redhat:enterprise_linux:spacewalk-postgresql-server, p-cpe:/a:redhat:enterprise_linux:rh-postgresql95-postgresql, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-config-files-tool, p-cpe:/a:redhat:enterprise_linux:spacewalk-backend-tools

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2017

Vulnerability Publication Date: 8/4/2016

Reference Information

CVE: CVE-2016-5423, CVE-2016-5424, CVE-2017-7484, CVE-2017-7485, CVE-2017-7486

CWE: 20, 285, 390, 822, 862

RHSA: 2017:2425

Detections

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