USN-2744-1: Apport vulnerability

Ubuntu Security Notice USN-2744-1

24th September, 2015

apport vulnerability

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

  • Ubuntu 15.04
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Apport could be made to crash or overwrite files as an administrator.

Software description

  • apport - automatically generate crash reports for debugging

Details

Halfdog discovered that Apport incorrectly handled kernel crash dump files.
A local attacker could use this issue to cause a denial of service, or
possibly elevate privileges. The default symlink protections for affected
releases should reduce the vulnerability to a denial of service.

Update instructions

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

Ubuntu 15.04:
apport 2.17.2-0ubuntu1.5
Ubuntu 14.04 LTS:
apport 2.14.1-0ubuntu3.15
Ubuntu 12.04 LTS:
apport 2.0.1-0ubuntu17.10

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-2015-1338