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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2396
                        PostgreSQL vulnerabilities
                              17 August 2018

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

Product:           postgresql
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Overwrite Arbitrary Files -- Existing Account
                   Access Confidential Data  -- Existing Account
                   Unauthorised Access       -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-10925 CVE-2018-10915 

Reference:         ESB-2018.2362
                   ESB-2018.2312

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3744-1

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USN-3744-1: PostgreSQL vulnerabilities

16 August 2018

postgresql-10, postgresql-9.3, postgresql-9.5 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS
  o Ubuntu 14.04 LTS

Summary

Several security issues were fixed in PostgreSQL.

Software Description

  o postgresql-10 - object-relational SQL database
  o postgresql-9.5 - Object-relational SQL database
  o postgresql-9.3 - Object-relational SQL database

Details

Andrew Krasichkov discovered that the PostgreSQL client library incorrectly
reset its internal state between connections. A remote attacker could possibly
use this issue to bypass certain client-side connection security features. This
issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-10915)

It was discovered that PostgreSQL incorrectly checked authorization on certain
statements. A remote attacker could possibly use this issue to read arbitrary
server memory or alter certain data. (CVE-2018-10925)

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 18.04 LTS
    postgresql-10 - 10.5-0ubuntu0.18.04
Ubuntu 16.04 LTS
    postgresql-9.5 - 9.5.14-0ubuntu0.16.04
Ubuntu 14.04 LTS
    postgresql-9.3 - 9.3.24-0ubuntu0.14.04

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades.

This update uses a new upstream release, which includes additional bug fixes.
After a standard system update you need to restart PostgreSQL to make all the
necessary changes.

References

  o CVE-2018-10915
  o CVE-2018-10925

(C) 2017 Canonical Ltd. Ubuntu and Canonical are registered trademarks of
Canonical Ltd.

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