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:

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in PostgreSQL.

Software Description

  • postgresql-10 - object-relational SQL database
  • postgresql-9.5 - Object-relational SQL database
  • 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