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.
References
Link | Resource |
---|---|
http://www.openwall.com/lists/oss-security/2019/09/03/1 | Exploit Mailing List Third Party Advisory |
https://access.redhat.com/errata/RHSA-2019:3592 | Issue Tracking Third Party Advisory |
https://access.redhat.com/errata/RHSA-2019:3941 | Issue Tracking Patch Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1746057 | Issue Tracking Patch Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRE5IS24XTF5WNZGH2L7GSQJKARBOEGL/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIKGKXZ5OEGOEYURHLJHEMFYNLEGAW5B/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U2WNHRJW4XI6H5YMDG4BUFGPAXWUMUVG/ |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-09-04T11:04:31
Updated: 2019-11-21T12:07:03
Reserved: 2019-08-28T00:00:00
Link: CVE-2019-15718
JSON object: View
NVD Information
Status : Modified
Published: 2019-09-04T12:15:11.170
Modified: 2023-11-07T03:05:31.890
Link: CVE-2019-15718
JSON object: View
Redhat Information
No data.
CWE