Debian DSA-5401-1 : postgresql-13 - security update

high Nessus Plugin ID 175661

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5401 advisory.

- schema_element defeats protective search_path changes; It was found that certain database calls in PostgreSQL could permit an authed attacker with elevated database-level privileges to execute arbitrary code. (CVE-2023-2454)

- Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy. (CVE-2023-2455)

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

Solution

Upgrade the postgresql-13 packages.

For the stable distribution (bullseye), these problems have been fixed in version 13.11-0+deb11u1.

Plugin Details

Severity: High

ID: 175661

File Name: debian_DSA-5401.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/14/2023

Updated: 8/17/2023

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: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2023-2454

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libecpg-compat3, 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-plpython3-13, p-cpe:/a:debian:debian_linux:postgresql-pltcl-13, p-cpe:/a:debian:debian_linux:postgresql-server-dev-13, p-cpe:/a:debian:debian_linux:postgresql-13, p-cpe:/a:debian:debian_linux:libpq-dev, p-cpe:/a:debian:debian_linux:postgresql-client-13, p-cpe:/a:debian:debian_linux:postgresql-plperl-13, p-cpe:/a:debian:debian_linux:postgresql-doc-13, p-cpe:/a:debian:debian_linux:libpgtypes3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/11/2023

Vulnerability Publication Date: 5/11/2023

Reference Information

CVE: CVE-2023-2454, CVE-2023-2455

IAVB: 2023-B-0034-S

Detections

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