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Amazon Linux 2023 : postgresql15, postgresql15-contrib, postgresql15-llvmjit (ALAS2023-2023-387)

medium Nessus Plugin ID 183804

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-387 advisory.

 - In PostgreSQL, a modified, unauthenticated server can send an unterminated string during the establishment of Kerberos transport encryption. In certain conditions a server can cause a libpq client to over-read and report an error message containing uninitialized bytes. (CVE-2022-41862)

 - 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)

 - A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows. (CVE-2023-39418)

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

Solution

Run 'dnf update postgresql15 --releasever 2023.2.20231018' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-387.html

https://alas.aws.amazon.com/faqs.html

https://alas.aws.amazon.com/cve/html/CVE-2022-41862.html

https://alas.aws.amazon.com/cve/html/CVE-2023-2455.html

https://alas.aws.amazon.com/cve/html/CVE-2023-39418.html

Plugin Details

Severity: Medium

ID: 183804

File Name: al2023_ALAS2023-2023-387.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/24/2023

Updated: 3/5/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2023-2455

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:postgresql15, p-cpe:/a:amazon:linux:postgresql15-contrib, p-cpe:/a:amazon:linux:postgresql15-contrib-debuginfo, p-cpe:/a:amazon:linux:postgresql15-debuginfo, p-cpe:/a:amazon:linux:postgresql15-debugsource, p-cpe:/a:amazon:linux:postgresql15-docs, p-cpe:/a:amazon:linux:postgresql15-docs-debuginfo, p-cpe:/a:amazon:linux:postgresql15-llvmjit, p-cpe:/a:amazon:linux:postgresql15-llvmjit-debuginfo, p-cpe:/a:amazon:linux:postgresql15-plperl, p-cpe:/a:amazon:linux:postgresql15-plperl-debuginfo, p-cpe:/a:amazon:linux:postgresql15-plpython3, p-cpe:/a:amazon:linux:postgresql15-plpython3-debuginfo, p-cpe:/a:amazon:linux:postgresql15-pltcl, p-cpe:/a:amazon:linux:postgresql15-pltcl-debuginfo, p-cpe:/a:amazon:linux:postgresql15-private-devel, p-cpe:/a:amazon:linux:postgresql15-private-libs, p-cpe:/a:amazon:linux:postgresql15-private-libs-debuginfo, p-cpe:/a:amazon:linux:postgresql15-server, p-cpe:/a:amazon:linux:postgresql15-server-debuginfo, p-cpe:/a:amazon:linux:postgresql15-server-devel, p-cpe:/a:amazon:linux:postgresql15-server-devel-debuginfo, p-cpe:/a:amazon:linux:postgresql15-static, p-cpe:/a:amazon:linux:postgresql15-test, p-cpe:/a:amazon:linux:postgresql15-test-debuginfo, p-cpe:/a:amazon:linux:postgresql15-test-rpm-macros, p-cpe:/a:amazon:linux:postgresql15-upgrade, p-cpe:/a:amazon:linux:postgresql15-upgrade-debuginfo, p-cpe:/a:amazon:linux:postgresql15-upgrade-devel, p-cpe:/a:amazon:linux:postgresql15-upgrade-devel-debuginfo, cpe:/o:amazon:linux:2023

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2023

Vulnerability Publication Date: 5/11/2023

Reference Information

CVE: CVE-2022-41862, CVE-2023-2455, CVE-2023-39418

IAVB: 2023-B-0034-S, 2023-B-0060-S