RHSA-2021:0164 - Security Advisory

Topic

An update for the postgresql:9.6 module is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

PostgreSQL is an advanced object-relational database management system (DBMS).

The following packages have been upgraded to a later upstream version: postgresql (9.6.20).

Security Fix(es):

• postgresql: Reconnection can downgrade connection security settings (CVE-2020-25694)
• postgresql: Multiple features escape "security restricted operation" sandbox (CVE-2020-25695)
• postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)
• postgresql: Uncontrolled search path element in CREATE EXTENSION (CVE-2020-14350)
• postgresql: psql's \gset allows overwriting specially treated variables (CVE-2020-25696)
• postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)
• postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

If the postgresql service is running, it will be automatically restarted after installing this update.

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.2 x86_64
• Red Hat Enterprise Linux Server - AUS 8.2 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.2 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.2 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.2 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.2 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.2 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.2 x86_64

Fixes

• BZ - 1707109 - CVE-2019-10130 postgresql: Selectivity estimators bypass row security policies
• BZ - 1734416 - CVE-2019-10208 postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution
• BZ - 1798852 - CVE-2020-1720 postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks
• BZ - 1865746 - CVE-2020-14350 postgresql: Uncontrolled search path element in CREATE EXTENSION
• BZ - 1894423 - CVE-2020-25694 postgresql: Reconnection can downgrade connection security settings
• BZ - 1894425 - CVE-2020-25695 postgresql: Multiple features escape "security restricted operation" sandbox
• BZ - 1894430 - CVE-2020-25696 postgresql: psql's \gset allows overwriting specially treated variables

CVEs

• CVE-2019-10130
• CVE-2019-10208
• CVE-2020-1720
• CVE-2020-14350
• CVE-2020-25694
• CVE-2020-25695
• CVE-2020-25696

References

• https://access.redhat.com/security/updates/classification/#important