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Ubuntu Security Notice USN-4134-1
September 16, 2019
ibus vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
IBus would allow local users to capture key strokes of other locally logged
in users.
Software Description:
– ibus: Intelligent Input Bus – core
Details:
Simon McVittie discovered that IBus did not enforce appropriate access
controls on its private D-Bus socket. A local unprivileged user who
discovers the IBus socket address of another user could exploit this to
capture the key strokes of the other user.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.04:
ibus 1.5.19-1ubuntu2.1
Ubuntu 18.04 LTS:
ibus 1.5.17-3ubuntu5.1
Ubuntu 16.04 LTS:
ibus 1.5.11-1ubuntu2.2
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/4134-1
CVE-2019-14822
Package Information:
https://launchpad.net/ubuntu/+source/ibus/1.5.19-1ubuntu2.1
https://launchpad.net/ubuntu/+source/ibus/1.5.17-3ubuntu5.1
https://launchpad.net/ubuntu/+source/ibus/1.5.11-1ubuntu2.2
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