Ubuntu Security Update USN-3476-1: postgresql-common vulnerabilities

[LinuxBot]

Ubuntu Security Notice USN-3476-1


9th November, 2017

postgresql-common vulnerabilities


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

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary


postgresql-common could be made to overwrite files as the administrator.

Software description

• postgresql-common - PostgreSQL database-cluster manager

Details


Dawid Golunski discovered that the postgresql-common pg_ctlcluster script
incorrectly handled symlinks. A local attacker could possibly use this
issue to escalate privileges. This issue only affected Ubuntu 14.04 LTS and
Ubuntu 16.04 LTS. (CVE-2016-1255)

It was discovered that the postgresql-common helper scripts incorrectly
handled symlinks. A local attacker could possibly use this issue to
escalate privileges. (CVE-2017-8806)

Update instructions


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

Ubuntu 17.10:
postgresql-common 184ubuntu1.1
Ubuntu 17.04:
postgresql-common 179ubuntu0.1
Ubuntu 16.04 LTS:
postgresql-common 173ubuntu0.1
Ubuntu 14.04 LTS:
postgresql-common 154ubuntu1.1

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

In general, a standard system update will make all the necessary changes.

References


CVE-2016-1255, CVE-2017-8806

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