Comment 24 for bug 1452239

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package apport - 2.17.3-0ubuntu1

---------------
apport (2.17.3-0ubuntu1) wily; urgency=medium

  * New upstream release:
    - SECURITY UPDATE: When /proc/sys/fs/suid_dumpable is enabled, crashing a
      program that is suid root or not readable for the user would create
      root-owned core files in the current directory of that program. Creating
      specially crafted core files in /etc/logrotate.d or similar could then
      lead to arbitrary code execution with root privileges.
      Now core files do not get written for these kinds of programs, in
      accordance with the intention of core(5).
      Thanks to Sander Bos for discovering this issue!
      (CVE-2015-1324, LP: #1452239)
    - SECURITY UPDATE: When writing a core dump file for a crashed packaged
      program, don't close and reopen the .crash report file but just rewind
      and re-read it. This prevents the user from modifying the .crash report
      file while "apport" is running to inject data and creating crafted core
      dump files. In conjunction with the above vulnerability of writing core
      dump files to arbitrary directories this could be exploited to gain root
      privileges.
      Thanks to Philip Pettersson for discovering this issue!
      (CVE-2015-1325, LP: #1453900)
    - apportcheckresume: Fix "occured" typo, thanks Matthew Paul Thomas.
      (LP: #1448636)
    - signal_crashes test: Fix test_crash_setuid_* to look at whether
      suid_dumpable was enabled.
    - test/run: Run UI tests under dbus-launch, newer GTK versions require this
      now.

 -- Martin Pitt <email address hidden> Wed, 20 May 2015 16:58:35 +0200