Ubuntu Security Notice 3351-1 - Felix Wilhelm discovered that Evince did not safely invoke tar when handling tar comic book files. An attacker could use this to construct a malicious cbt comic book format file that, when opened in Evince, executes arbitrary code. Please note that this update disables support for cbt files in Evince.
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Ubuntu Security Notice USN-3351-1
July 13, 2017
evince vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Evince could be made run programs as your login if it opened a
specially crafted file.
Software Description:
- evince: Document viewer
Details:
Felix Wilhelm discovered that Evince did not safely invoke tar when
handling tar comic book (cbt) files. An attacker could use this to
construct a malicious cbt comic book format file that, when opened
in Evince, executes arbitrary code. Please note that this update
disables support for cbt files in Evince.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
evince 3.24.0-0ubuntu1.1
evince-common 3.24.0-0ubuntu1.1
Ubuntu 16.10:
evince 3.22.0-0ubuntu1.1
evince-common 3.22.0-0ubuntu1.1
Ubuntu 16.04 LTS:
evince 3.18.2-1ubuntu4.1
evince-common 3.18.2-1ubuntu4.1
Ubuntu 14.04 LTS:
evince 3.10.3-0ubuntu10.3
evince-common 3.10.3-0ubuntu10.3
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3351-1
CVE-2017-1000083
Package Information:
https://launchpad.net/ubuntu/+source/evince/3.24.0-0ubuntu1.1
https://launchpad.net/ubuntu/+source/evince/3.22.0-0ubuntu1.1
https://launchpad.net/ubuntu/+source/evince/3.18.2-1ubuntu4.1
https://launchpad.net/ubuntu/+source/evince/3.10.3-0ubuntu10.3
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