Debian DLA-1464-1 : postgresql-9.4 security update

high Nessus Plugin ID 111762

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Synopsis

The remote Debian host is missing a security update.

Description

An unprivileged user of dblink or postgres_fdw could bypass the checks intended to prevent use of server-side credentials, such as a ~/.pgpass file owned by the operating-system user running the server.
Servers allowing peer authentication on local connections are particularly vulnerable. Other attacks such as SQL injection into a postgres_fdw session are also possible. Attacking postgres_fdw in this way requires the ability to create a foreign server object with selected connection parameters, but any user with access to dblink could exploit the problem. In general, an attacker with the ability to select the connection parameters for a libpq-using application could cause mischief, though other plausible attack scenarios are harder to think of. Our thanks to Andrew Krasichkov for reporting this issue.

For Debian 8 'Jessie', this problem has been fixed in version 9.4.19-0+deb8u1.

We recommend that you upgrade your postgresql-9.4 packages.

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

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 111762

File Name: debian_DLA-1464.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/16/2018

Updated: 8/21/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2018-10915

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/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:debian:debian_linux:postgresql-pltcl-9.4, p-cpe:/a:debian:debian_linux:libecpg-compat3, p-cpe:/a:debian:debian_linux:postgresql-plpython-9.4, p-cpe:/a:debian:debian_linux:postgresql-9.4-dbg, p-cpe:/a:debian:debian_linux:postgresql-server-dev-9.4, p-cpe:/a:debian:debian_linux:libecpg6, p-cpe:/a:debian:debian_linux:libecpg-dev, p-cpe:/a:debian:debian_linux:libpq5, p-cpe:/a:debian:debian_linux:postgresql-9.4, p-cpe:/a:debian:debian_linux:postgresql-doc-9.4, p-cpe:/a:debian:debian_linux:postgresql-plpython3-9.4, p-cpe:/a:debian:debian_linux:libpq-dev, p-cpe:/a:debian:debian_linux:postgresql-plperl-9.4, p-cpe:/a:debian:debian_linux:libpgtypes3, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:postgresql-contrib-9.4, p-cpe:/a:debian:debian_linux:postgresql-client-9.4

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/15/2018

Reference Information

CVE: CVE-2018-10915

Detections

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