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Fedora 26 Security Advisory for Wayland: Heap Overflow Threat

fedora
Calendar Grey December 19, 2017
Dist Fedora Esm H88
The Fedora 27 patch resolves a buffer overflow issue in Wayland, enhancing the security of pointer file management.
This update fixes a possible heap overflow when parsing malicious cursor files

Summary

Wayland is a protocol for a compositor to talk to its clients as well as a C

library implementation of that protocol. The compositor can be a standalone

display server running on Linux kernel modesetting and evdev input devices,

an X application, or a wayland client itself. The clients can be traditional

applications, X servers (rootless or fullscreen) or other display servers.

Update Information:

This update fixes a possible heap overflow when parsing malicious cursor files. See https://lists.freedesktop.org/archives/wayland-devel/2017-November/035979.html for details.

Topics%20covered

Topics Covered

security advisory security issue update critical Fedora heap overflow Wayland

Change Log

References


[ 1 ] Bug #1522638 https://bugzilla.redhat.com/show_bug.cgi?id=1522638

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade wayland' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html

Severity
critical
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Name: wayland
Product: Fedora 26
Version: 1.13.0
Release: 3.fc26
URL: http://wayland.freedesktop.org/
Summary: Wayland Compositor Infrastructure

Topics%20covered

Topics Covered

security advisory security issue update critical Fedora heap overflow Wayland

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