Debian Linux Security Advisory 4525-1 - Simon McVittie reported a flaw in ibus, the Intelligent Input Bus. Due to a misconfiguration during the setup of the DBus, any unprivileged user could monitor and send method calls to the ibus bus of another user, if able to discover the UNIX socket used by another user connected on a graphical environment. The attacker can take advantage of this flaw to intercept keystrokes of the victim user or modify input related configurations through DBus method calls.
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Debian Security Advisory DSA-4525-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
September 18, 2019 https://www.debian.org/security/faq
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Package : ibus
CVE ID : CVE-2019-14822
Debian Bug : 940267
Simon McVittie reported a flaw in ibus, the Intelligent Input Bus. Due
to a misconfiguration during the setup of the DBus, any unprivileged
user could monitor and send method calls to the ibus bus of another
user, if able to discover the UNIX socket used by another user connected
on a graphical environment. The attacker can take advantage of this flaw
to intercept keystrokes of the victim user or modify input related
configurations through DBus method calls.
For the oldstable distribution (stretch), this problem has been fixed
in version 1.5.14-3+deb9u2.
For the stable distribution (buster), this problem has been fixed in
version 1.5.19-4+deb10u1.
We recommend that you upgrade your ibus packages.
For the detailed security status of ibus please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/ibus
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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