USN-3480-1: Apport vulnerabilities

Ubuntu Security Notice USN-3480-1

15th November, 2017

apport 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

Apport could be tricked into creating files as an administrator, resulting in denial of service or privilege escalation.

Software description

  • apport - automatically generate crash reports for debugging

Details

Sander Bos discovered that Apport incorrectly handled core dumps for setuid
binaries. A local attacker could use this issue to perform a denial of service
via resource exhaustion or possibly gain root privileges. (CVE-2017-14177)

Sander Bos discovered that Apport incorrectly handled core dumps for processes
in a different PID namespace. A local attacker could use this issue to perform
a denial of service via resource exhaustion or possibly gain root privileges.
(CVE-2017-14180)

Update instructions

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

Ubuntu 17.10:
apport 2.20.7-0ubuntu3.4
Ubuntu 17.04:
apport 2.20.4-0ubuntu4.7
Ubuntu 16.04 LTS:
apport 2.20.1-0ubuntu2.12
Ubuntu 14.04 LTS:
apport 2.14.1-0ubuntu3.27

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-2017-14177, CVE-2017-14180