Information Exposure Affecting postgresql:12/postgresql-pltcl package, versions <0:12.9-1.module+el8.5.0+13373+4554acc4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

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  • Snyk IDSNYK-RHEL8-POSTGRESQL-4176331
  • published26 Sept 2021
  • disclosed12 Aug 2021

Introduced: 12 Aug 2021

CVE-2021-3677  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:8 postgresql:12/postgresql-pltcl to version 0:12.9-1.module+el8.5.0+13373+4554acc4 or higher.
This issue was patched in RHSA-2021:5235.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql:12/postgresql-pltcl package and not the postgresql:12/postgresql-pltcl package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1