Ubuntu Security Notice USN-3157-1
14th December, 2016
apport vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Apport could be made to run programs as your login if it opened a
specially crafted file.
Software description
- apport
– automatically generate crash reports for debugging
Details
Donncha O Cearbhaill discovered that the crash file parser in Apport
improperly treated the CrashDB field as python code. An attacker could
use this to convince a user to open a maliciously crafted crash file
and execute arbitrary code with the privileges of that user. This issue
only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-9949)
Donncha O Cearbhaill discovered that Apport did not properly sanitize the
Package and SourcePackage fields in crash files before processing package
specific hooks. An attacker could use this to convince a user to open a
maliciously crafted crash file and execute arbitrary code with the
privileges of that user. (CVE-2016-9950)
Donncha O Cearbhaill discovered that Apport would offer to restart an
application based on the contents of the RespawnCommand or ProcCmdline
fields in a crash file. An attacker could use this to convince a user to
open a maliciously crafted crash file and execute arbitrary code with the
privileges of that user. (CVE-2016-9951)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.10:
-
apport
2.20.3-0ubuntu8.2
-
python-apport
2.20.3-0ubuntu8.2
-
python3-apport
2.20.3-0ubuntu8.2
-
apport-kde
2.20.3-0ubuntu8.2
-
apport-gtk
2.20.3-0ubuntu8.2
- Ubuntu 16.04 LTS:
-
apport
2.20.1-0ubuntu2.4
-
python-apport
2.20.1-0ubuntu2.4
-
python3-apport
2.20.1-0ubuntu2.4
-
apport-kde
2.20.1-0ubuntu2.4
-
apport-gtk
2.20.1-0ubuntu2.4
- Ubuntu 14.04 LTS:
-
apport
2.14.1-0ubuntu3.23
-
python-apport
2.14.1-0ubuntu3.23
-
python3-apport
2.14.1-0ubuntu3.23
-
apport-kde
2.14.1-0ubuntu3.23
-
apport-gtk
2.14.1-0ubuntu3.23
- Ubuntu 12.04 LTS:
-
apport
2.0.1-0ubuntu17.15
-
python-apport
2.0.1-0ubuntu17.15
-
apport-kde
2.0.1-0ubuntu17.15
-
apport-gtk
2.0.1-0ubuntu17.15
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.