USN-2609-1: Apport vulnerabilities

21 May 2015

apport vulnerabilities

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

  • Ubuntu 15.04
  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Apport could be tricked into creating arbitrary files as an administrator, resulting in privilege escalation.

Software Description

  • apport - automatically generate crash reports for debugging

Details

Sander Bos discovered that Apport incorrectly handled permissions when the system was configured to generate core dumps for setuid binaries. A local attacker could use this issue to gain elevated privileges. (CVE-2015-1324)

Philip Pettersson discovered that Apport contained race conditions resulting core dumps to be generated with incorrect permissions in arbitrary locations. A local attacker could use this issue to gain elevated privileges. (CVE-2015-1325)

Update instructions

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

Ubuntu 15.04
apport - 2.17.2-0ubuntu1.1
Ubuntu 14.10
apport - 2.14.7-0ubuntu8.5
Ubuntu 14.04 LTS
apport - 2.14.1-0ubuntu3.11
Ubuntu 12.04 LTS
apport - 2.0.1-0ubuntu17.9

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