Vulnerability CVE-2021-3677: Information

Description

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.

Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Fixed packages

References to Advisories, Solutions, and Tools

1. Affected configurations:

   1. Configuration 1

      cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

      Start including

      13.0

      End excliding

      13.4

      ---

      cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

      Start including

      12.0

      End excliding

      12.8

      ---

      cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

      Start including

      11.0

      End excliding

      11.13

      ---

      Configuration 2

      cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*

      ---

      Configuration 3

      cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*

      ---

      Running on/with:

      cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

      ---

      Configuration 4

      cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

      ---