ALAS-2022-1843

Amazon Linux 2 Security Advisory: ALAS-2022-1843
Advisory Release Date: 2022-09-01 21:09 Pacific
Advisory Updated Date: 2024-05-23 22:04 Pacific
Severity: Important
Issue Overview:

2024-05-23: CVE-2021-32027 was added to this advisory.

2024-05-23: CVE-2023-5869 was added to this advisory.

A flaw was found in postgresql. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-32027)

A flaw was found in PostgreSQL. There is an issue with incomplete efforts to operate safely when a privileged user is maintaining another user's objects. The Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pg_amcheck commands activated relevant protections too late or not at all during the process. This flaw allows an attacker with permission to create non-temporary objects in at least one schema to execute arbitrary SQL functions under a superuser identity. (CVE-2022-1552)

While modifying certain SQL array values, missing overflow checks let authenticated database users write arbitrary bytes to a memory area that facilitates arbitrary code execution. Missing overflow checks also let authenticated database users read a wide area of server memory. The CVE-2021-32027 fix covered some attacks of this description, but it missed others. (CVE-2023-5869)


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-9.2.24-8.amzn2.aarch64
    postgresql-libs-9.2.24-8.amzn2.aarch64
    postgresql-server-9.2.24-8.amzn2.aarch64
    postgresql-docs-9.2.24-8.amzn2.aarch64
    postgresql-contrib-9.2.24-8.amzn2.aarch64
    postgresql-devel-9.2.24-8.amzn2.aarch64
    postgresql-static-9.2.24-8.amzn2.aarch64
    postgresql-upgrade-9.2.24-8.amzn2.aarch64
    postgresql-plperl-9.2.24-8.amzn2.aarch64
    postgresql-plpython-9.2.24-8.amzn2.aarch64
    postgresql-pltcl-9.2.24-8.amzn2.aarch64
    postgresql-test-9.2.24-8.amzn2.aarch64
    postgresql-debuginfo-9.2.24-8.amzn2.aarch64

i686:
    postgresql-9.2.24-8.amzn2.i686
    postgresql-libs-9.2.24-8.amzn2.i686
    postgresql-server-9.2.24-8.amzn2.i686
    postgresql-docs-9.2.24-8.amzn2.i686
    postgresql-contrib-9.2.24-8.amzn2.i686
    postgresql-devel-9.2.24-8.amzn2.i686
    postgresql-static-9.2.24-8.amzn2.i686
    postgresql-upgrade-9.2.24-8.amzn2.i686
    postgresql-plperl-9.2.24-8.amzn2.i686
    postgresql-plpython-9.2.24-8.amzn2.i686
    postgresql-pltcl-9.2.24-8.amzn2.i686
    postgresql-test-9.2.24-8.amzn2.i686
    postgresql-debuginfo-9.2.24-8.amzn2.i686

src:
    postgresql-9.2.24-8.amzn2.src

x86_64:
    postgresql-9.2.24-8.amzn2.x86_64
    postgresql-libs-9.2.24-8.amzn2.x86_64
    postgresql-server-9.2.24-8.amzn2.x86_64
    postgresql-docs-9.2.24-8.amzn2.x86_64
    postgresql-contrib-9.2.24-8.amzn2.x86_64
    postgresql-devel-9.2.24-8.amzn2.x86_64
    postgresql-static-9.2.24-8.amzn2.x86_64
    postgresql-upgrade-9.2.24-8.amzn2.x86_64
    postgresql-plperl-9.2.24-8.amzn2.x86_64
    postgresql-plpython-9.2.24-8.amzn2.x86_64
    postgresql-pltcl-9.2.24-8.amzn2.x86_64
    postgresql-test-9.2.24-8.amzn2.x86_64
    postgresql-debuginfo-9.2.24-8.amzn2.x86_64

Additional References

Red Hat: CVE-2021-32027, CVE-2022-1552, CVE-2023-5869

Mitre: CVE-2021-32027, CVE-2022-1552, CVE-2023-5869