Important: postgresql

Issue Overview:

A flaw was discovered in postgresql where arbitrary SQL statements can be executed given a suitable SECURITY DEFINER function. An attacker, with EXECUTE permission on the function, can execute arbitrary SQL as the owner of the function. (CVE-2019-10208)

A flaw was found in postgresql. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25694)

A flaw was found in postgresql. An attacker having permission to create non-temporary objects in at least one schema can execute arbitrary SQL functions under the identity of a superuser. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25695)

Affected Packages:

postgresql

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update postgresql to update your system.

New Packages:

aarch64:  
    postgresql-9.2.24-6.amzn2.aarch64  
    postgresql-libs-9.2.24-6.amzn2.aarch64  
    postgresql-server-9.2.24-6.amzn2.aarch64  
    postgresql-docs-9.2.24-6.amzn2.aarch64  
    postgresql-contrib-9.2.24-6.amzn2.aarch64  
    postgresql-devel-9.2.24-6.amzn2.aarch64  
    postgresql-static-9.2.24-6.amzn2.aarch64  
    postgresql-upgrade-9.2.24-6.amzn2.aarch64  
    postgresql-plperl-9.2.24-6.amzn2.aarch64  
    postgresql-plpython-9.2.24-6.amzn2.aarch64  
    postgresql-pltcl-9.2.24-6.amzn2.aarch64  
    postgresql-test-9.2.24-6.amzn2.aarch64  
    postgresql-debuginfo-9.2.24-6.amzn2.aarch64  
  
i686:  
    postgresql-9.2.24-6.amzn2.i686  
    postgresql-libs-9.2.24-6.amzn2.i686  
    postgresql-server-9.2.24-6.amzn2.i686  
    postgresql-docs-9.2.24-6.amzn2.i686  
    postgresql-contrib-9.2.24-6.amzn2.i686  
    postgresql-devel-9.2.24-6.amzn2.i686  
    postgresql-static-9.2.24-6.amzn2.i686  
    postgresql-upgrade-9.2.24-6.amzn2.i686  
    postgresql-plperl-9.2.24-6.amzn2.i686  
    postgresql-plpython-9.2.24-6.amzn2.i686  
    postgresql-pltcl-9.2.24-6.amzn2.i686  
    postgresql-test-9.2.24-6.amzn2.i686  
    postgresql-debuginfo-9.2.24-6.amzn2.i686  
  
src:  
    postgresql-9.2.24-6.amzn2.src  
  
x86_64:  
    postgresql-9.2.24-6.amzn2.x86_64  
    postgresql-libs-9.2.24-6.amzn2.x86_64  
    postgresql-server-9.2.24-6.amzn2.x86_64  
    postgresql-docs-9.2.24-6.amzn2.x86_64  
    postgresql-contrib-9.2.24-6.amzn2.x86_64  
    postgresql-devel-9.2.24-6.amzn2.x86_64  
    postgresql-static-9.2.24-6.amzn2.x86_64  
    postgresql-upgrade-9.2.24-6.amzn2.x86_64  
    postgresql-plperl-9.2.24-6.amzn2.x86_64  
    postgresql-plpython-9.2.24-6.amzn2.x86_64  
    postgresql-pltcl-9.2.24-6.amzn2.x86_64  
    postgresql-test-9.2.24-6.amzn2.x86_64  
    postgresql-debuginfo-9.2.24-6.amzn2.x86_64  

Additional References

Red Hat: CVE-2019-10208, CVE-2020-25694, CVE-2020-25695

Mitre: CVE-2019-10208, CVE-2020-25694, CVE-2020-25695