Ubuntu Security Notice 3622-1 - It was discovered that the Wayland Xcursor support incorrectly handled certain files. An attacker could use these issues to cause Wayland to crash, resulting in a denial of service, or possibly execute arbitrary code.
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Ubuntu Security Notice USN-3622-1
April 09, 2018
wayland vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Wayland could be made to crash or run programs if it opened a specially
crafted file.
Software Description:
- wayland: Wayland compositor infrastructure
Details:
It was discovered that the Wayland Xcursor support incorrectly handled
certain files. An attacker could use these issues to cause Wayland to
crash, resulting in a denial of service, or possibly execute arbitrary
code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
libwayland-cursor0 1.14.0-1ubuntu0.1
Ubuntu 16.04 LTS:
libwayland-bin 1.12.0-1~ubuntu16.04.3
libwayland-client0 1.12.0-1~ubuntu16.04.3
libwayland-cursor0 1.12.0-1~ubuntu16.04.3
libwayland-dev 1.12.0-1~ubuntu16.04.3
libwayland-doc 1.12.0-1~ubuntu16.04.3
libwayland-server0 1.12.0-1~ubuntu16.04.3
Ubuntu 14.04 LTS:
libwayland-cursor0 1.4.0-1ubuntu1.1
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3622-1
CVE-2017-16612
Package Information:
https://launchpad.net/ubuntu/+source/wayland/1.14.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/wayland/1.12.0-1~ubuntu16.04.3
https://launchpad.net/ubuntu/+source/wayland/1.4.0-1ubuntu1.1