CVE-2019-15718

MEDIUM

4.4

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.

CVE Details

CVSS v3.1 Score4.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published9/4/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

fedoraproject:fedoraredhat:enterprise_linuxredhat:enterprise_linux_eusredhat:enterprise_linux_for_ibm_z_systems_8_s390xredhat:enterprise_linux_for_ibm_z_systems_eusredhat:enterprise_linux_for_ibm_z_systems_eus_s390xredhat:enterprise_linux_for_power_little_endianredhat:enterprise_linux_for_power_little_endian_eusredhat:enterprise_linux_server_ausredhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsredhat:enterprise_linux_server_tusredhat:enterprise_linux_server_update_services_for_sap_solutionsredhat:openshift_container_platformsystemd_project:systemd

References

http://www.openwall.com/lists/oss-security/2019/09/03/1(cve@mitre.org)

https://access.redhat.com/errata/RHSA-2019:3592(cve@mitre.org)

https://access.redhat.com/errata/RHSA-2019:3941(cve@mitre.org)

https://bugzilla.redhat.com/show_bug.cgi?id=1746057(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRE5IS24XTF5WNZGH2L7GSQJKARBOEGL/(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIKGKXZ5OEGOEYURHLJHEMFYNLEGAW5B/(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U2WNHRJW4XI6H5YMDG4BUFGPAXWUMUVG/(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2019/09/03/1(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2019:3592(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2019:3941(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=1746057(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRE5IS24XTF5WNZGH2L7GSQJKARBOEGL/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIKGKXZ5OEGOEYURHLJHEMFYNLEGAW5B/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U2WNHRJW4XI6H5YMDG4BUFGPAXWUMUVG/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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