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Category:   Application (Database)  >   PostgreSQL Vendors:   postgresql.org
(Oracle Issues Fix for Oracle Linux) PostgreSQL Bugs Let Remote Users Access and Modify Data in Transit and Let Remote Authenticated Users Obtain Password and Other Potentially Sensitive Information
SecurityTracker Alert ID:  1039143
SecurityTracker URL:  http://securitytracker.com/id/1039143
CVE Reference:   CVE-2017-7484, CVE-2017-7486   (Links to External Site)
Date:  Aug 11 2017
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in PostgreSQL. A remote user can access and modify data communicated by the target system. A remote authenticated user can obtain foreign passwords on the target system. A remote authenticated user can obtain potentially sensitive information from tables on the target system.

A remote authenticated user can invoke certain selectivity estimation functions that do not check user privileges before providing information from pg_statistic to obtain potentially sensitive information from ostensibly restricted tables [CVE-2017-7484].

The system does not enforce the PGREQUIRESSL environment variable settings. As a result, a remote user that can conduct a man-in-the-middle attack can cause an SSL connection to be downgraded to use no encryption to access and modify data communicated by the target system [CVE-2017-7485].

The pg_user_mappings access qualifications are not properly implemented. A remote authenticated user may be able to view foreign server passwords [CVE-2017-7486].

Andrew Wheelwright, Daniel Gustafsson, and Robert Haas reported these vulnerabilities.

Impact:   A remote user can access and modify data communicated by the target system.

A remote authenticated user can obtain view foreign server passwords on the target system.

A remote authenticated user can obtain potentially sensitive information on the target system.

Solution:   Oracle has issued a fix for CVE-2017-7484 and CVE-2017-7486.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2017-1983.html

Vendor URL:  linux.oracle.com/errata/ELSA-2017-1983.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
May 12 2017 PostgreSQL Bugs Let Remote Users Access and Modify Data in Transit and Let Remote Authenticated Users Obtain Password and Other Potentially Sensitive Information



 Source Message Contents

Subject:  [El-errata] ELSA-2017-1983 Moderate: Oracle Linux 7 postgresql security and enhancement update

Oracle Linux Security Advisory ELSA-2017-1983

http://linux.oracle.com/errata/ELSA-2017-1983.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
postgresql-9.2.21-1.el7.i686.rpm
postgresql-9.2.21-1.el7.x86_64.rpm
postgresql-contrib-9.2.21-1.el7.x86_64.rpm
postgresql-devel-9.2.21-1.el7.i686.rpm
postgresql-devel-9.2.21-1.el7.x86_64.rpm
postgresql-docs-9.2.21-1.el7.x86_64.rpm
postgresql-libs-9.2.21-1.el7.i686.rpm
postgresql-libs-9.2.21-1.el7.x86_64.rpm
postgresql-plperl-9.2.21-1.el7.x86_64.rpm
postgresql-plpython-9.2.21-1.el7.x86_64.rpm
postgresql-pltcl-9.2.21-1.el7.x86_64.rpm
postgresql-server-9.2.21-1.el7.x86_64.rpm
postgresql-static-9.2.21-1.el7.i686.rpm
postgresql-static-9.2.21-1.el7.x86_64.rpm
postgresql-test-9.2.21-1.el7.x86_64.rpm
postgresql-upgrade-9.2.21-1.el7.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/postgresql-9.2.21-1.el7.src.rpm



Description of changes:

[9.2.21-1]
- update to 9.2.21 per release notes
   http://www.postgresql.org/docs/9.2/static/release-9-2-21.html
   http://www.postgresql.org/docs/9.2/static/release-9-2-20.html
   http://www.postgresql.org/docs/9.2/static/release-9-2-19.html

[9.2.18-2]
- package libpgport.a (rhbz#1305979)


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