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Red Hat Security Advisory

Synopsis: Important: libpq security update
Advisory ID: RHSA-2021:0057-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0057
Issue date: 2021-01-11
CVE Names: CVE-2020-25694 CVE-2020-25696
=====================================================================

1. Summary:

An update for libpq 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream EUS (v. 8.2) – aarch64, ppc64le, s390x, x86_64

3. Description:

The libpq package provides the PostgreSQL client library, which allows
client programs to connect to PostgreSQL servers.

The following packages have been upgraded to a later upstream version:
libpq (12.5). (BZ#1898227, BZ#1901559)

Security Fix(es):

* postgresql: Reconnection can downgrade connection security settings
(CVE-2020-25694)

* postgresql: psql’s \gset allows overwriting specially treated variables
(CVE-2020-25696)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1894423 – CVE-2020-25694 postgresql: Reconnection can downgrade connection security settings
1894430 – CVE-2020-25696 postgresql: psql’s \gset allows overwriting specially treated variables

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.2):

Source:
libpq-12.5-1.el8_2.src.rpm

aarch64:
libpq-12.5-1.el8_2.aarch64.rpm
libpq-debuginfo-12.5-1.el8_2.aarch64.rpm
libpq-debugsource-12.5-1.el8_2.aarch64.rpm
libpq-devel-12.5-1.el8_2.aarch64.rpm
libpq-devel-debuginfo-12.5-1.el8_2.aarch64.rpm

ppc64le:
libpq-12.5-1.el8_2.ppc64le.rpm
libpq-debuginfo-12.5-1.el8_2.ppc64le.rpm
libpq-debugsource-12.5-1.el8_2.ppc64le.rpm
libpq-devel-12.5-1.el8_2.ppc64le.rpm
libpq-devel-debuginfo-12.5-1.el8_2.ppc64le.rpm

s390x:
libpq-12.5-1.el8_2.s390x.rpm
libpq-debuginfo-12.5-1.el8_2.s390x.rpm
libpq-debugsource-12.5-1.el8_2.s390x.rpm
libpq-devel-12.5-1.el8_2.s390x.rpm
libpq-devel-debuginfo-12.5-1.el8_2.s390x.rpm

x86_64:
libpq-12.5-1.el8_2.i686.rpm
libpq-12.5-1.el8_2.x86_64.rpm
libpq-debuginfo-12.5-1.el8_2.i686.rpm
libpq-debuginfo-12.5-1.el8_2.x86_64.rpm
libpq-debugsource-12.5-1.el8_2.i686.rpm
libpq-debugsource-12.5-1.el8_2.x86_64.rpm
libpq-devel-12.5-1.el8_2.i686.rpm
libpq-devel-12.5-1.el8_2.x86_64.rpm
libpq-devel-debuginfo-12.5-1.el8_2.i686.rpm
libpq-devel-debuginfo-12.5-1.el8_2.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2020-25694
https://access.redhat.com/security/cve/CVE-2020-25696
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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