Operating System:

[RedHat]

Published:

22 December 2020

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.4517
                           libpq security update
                             22 December 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libpq
Publisher:         Red Hat
Operating System:  Red Hat
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Access Confidential Data        -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-25696 CVE-2020-25694 

Reference:         ESB-2020.4470
                   ESB-2020.4469
                   ESB-2020.4449
                   ESB-2020.4415

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2020:5638

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                   Red Hat Security Advisory

Synopsis:          Important: libpq security update
Advisory ID:       RHSA-2020:5638-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5638
Issue date:        2020-12-21
CVE Names:         CVE-2020-25694 CVE-2020-25696 
=====================================================================

1. Summary:

An update for libpq is now available for Red Hat Enterprise Linux 8.0
Update Services for SAP Solutions.

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 E4S (v. 8.0) - 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#1898225, BZ#1901562)

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 E4S (v. 8.0):

Source:
libpq-12.5-1.el8_0.src.rpm

aarch64:
libpq-12.5-1.el8_0.aarch64.rpm
libpq-debuginfo-12.5-1.el8_0.aarch64.rpm
libpq-debugsource-12.5-1.el8_0.aarch64.rpm
libpq-devel-12.5-1.el8_0.aarch64.rpm
libpq-devel-debuginfo-12.5-1.el8_0.aarch64.rpm

ppc64le:
libpq-12.5-1.el8_0.ppc64le.rpm
libpq-debuginfo-12.5-1.el8_0.ppc64le.rpm
libpq-debugsource-12.5-1.el8_0.ppc64le.rpm
libpq-devel-12.5-1.el8_0.ppc64le.rpm
libpq-devel-debuginfo-12.5-1.el8_0.ppc64le.rpm

s390x:
libpq-12.5-1.el8_0.s390x.rpm
libpq-debuginfo-12.5-1.el8_0.s390x.rpm
libpq-debugsource-12.5-1.el8_0.s390x.rpm
libpq-devel-12.5-1.el8_0.s390x.rpm
libpq-devel-debuginfo-12.5-1.el8_0.s390x.rpm

x86_64:
libpq-12.5-1.el8_0.i686.rpm
libpq-12.5-1.el8_0.x86_64.rpm
libpq-debuginfo-12.5-1.el8_0.i686.rpm
libpq-debuginfo-12.5-1.el8_0.x86_64.rpm
libpq-debugsource-12.5-1.el8_0.i686.rpm
libpq-debugsource-12.5-1.el8_0.x86_64.rpm
libpq-devel-12.5-1.el8_0.i686.rpm
libpq-devel-12.5-1.el8_0.x86_64.rpm
libpq-devel-debuginfo-12.5-1.el8_0.i686.rpm
libpq-devel-debuginfo-12.5-1.el8_0.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 2020 Red Hat, Inc.
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