Ubuntu 14.04 LTS / 16.04 LTS : PostgreSQL vulnerabilities (USN-3390-1)

critical Nessus Plugin ID 102522

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

Ben de Graaff, Jelte Fennema, and Jeroen van der Ham discovered that PostgreSQL allowed the use of empty passwords in some authentication methods, contrary to expected behaviour. A remote attacker could use an empty password to authenticate to servers that were believed to have password login disabled. (CVE-2017-7546)

Jeff Janes discovered that PostgreSQL incorrectly handled the pg_user_mappings catalog view. A remote attacker without server privileges could possibly use this issue to obtain certain passwords.
(CVE-2017-7547)

Chapman Flack discovered that PostgreSQL incorrectly handled lo_put() permissions. A remote attacker could possibly use this issue to change the data in a large object. (CVE-2017-7548).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3390-1

Plugin Details

Severity: Critical

ID: 102522

File Name: ubuntu_USN-3390-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 8/16/2017

Updated: 10/23/2023

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

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2017-7546

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:postgresql-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-client-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-client-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-contrib-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-contrib-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-plperl-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-plperl-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython3-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython3-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-pltcl-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-pltcl-9.5, p-cpe:/a:canonical:ubuntu_linux:postgresql-server-dev-9.3, p-cpe:/a:canonical:ubuntu_linux:postgresql-server-dev-9.5, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libecpg-compat3, p-cpe:/a:canonical:ubuntu_linux:libecpg-dev, p-cpe:/a:canonical:ubuntu_linux:libecpg6, p-cpe:/a:canonical:ubuntu_linux:libpgtypes3, p-cpe:/a:canonical:ubuntu_linux:libpq-dev, p-cpe:/a:canonical:ubuntu_linux:libpq5

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/15/2017

Vulnerability Publication Date: 8/16/2017

Reference Information

CVE: CVE-2017-7546, CVE-2017-7547, CVE-2017-7548

USN: 3390-1