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CentOS Linux: CVE-2019-15718: Moderate: systemd security, bug fix, and enhancement update (CESA-2019:3592)

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CentOS Linux: CVE-2019-15718: Moderate: systemd security, bug fix, and enhancement update (CESA-2019:3592)

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
09/04/2019
Created
11/07/2019
Added
11/06/2019
Modified
05/25/2023

Description

In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted, which disables access controls for incoming D-Bus messages. An unprivileged user can exploit this by executing D-Bus methods that should be restricted to privileged users, in order to change the system's DNS resolver settings.

Solution(s)

  • centos-upgrade-systemd
  • centos-upgrade-systemd-container
  • centos-upgrade-systemd-container-debuginfo
  • centos-upgrade-systemd-debuginfo
  • centos-upgrade-systemd-debugsource
  • centos-upgrade-systemd-devel
  • centos-upgrade-systemd-journal-remote
  • centos-upgrade-systemd-journal-remote-debuginfo
  • centos-upgrade-systemd-libs
  • centos-upgrade-systemd-libs-debuginfo
  • centos-upgrade-systemd-pam
  • centos-upgrade-systemd-pam-debuginfo
  • centos-upgrade-systemd-tests
  • centos-upgrade-systemd-tests-debuginfo
  • centos-upgrade-systemd-udev
  • centos-upgrade-systemd-udev-debuginfo

References

  • CVE-2019-15718
  • RHSA-2019:3592
  • RHSA-2019:3941

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