The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade RHEL:8
systemd-tests
to version 0:239-18.el8 or higher.
This issue was patched in RHSA-2019:3592
.
Note: Versions mentioned in the description apply only to the upstream systemd-tests
package and not the systemd-tests
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
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.