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Echo: postgresql-13: security update to 13.4

medium Tenable Cloud Security Plugin ID 462376

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the
 default configuration, any authenticated database user can complete this attack at will. The attack does
 not require the ability to create objects. If server settings include max_worker_processes=0, the known
 versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of
 that setting. (CVE-2021-3677)

Solution

Update the postgresql-13 library and its related packages to version 13.4 or later.

See Also

https://advisory.echohq.com/cve/CVE-2021-3677

Plugin Details

Severity: Medium

ID: 462376

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2021-3677

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2026

Vulnerability Publication Date: 8/12/2021

Reference Information

CVE: CVE-2021-3677