| Name | CVE-2019-15718 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 939353 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| systemd (PTS) | bullseye | 247.3-7+deb11u5 | fixed |
| bullseye (security) | 247.3-7+deb11u6 | fixed | |
| bookworm | 252.33-1~deb12u1 | fixed | |
| sid, trixie | 257.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| systemd | source | jessie | (not affected) | |||
| systemd | source | stretch | (not affected) | |||
| systemd | source | buster | 241-7~deb10u2 | |||
| systemd | source | (unstable) | 242-7 | 939353 |
[stretch] - systemd <not-affected> (Vulnerable code introduced later)
[jessie] - systemd <not-affected> (Vulnerable code introduced later)
https://www.openwall.com/lists/oss-security/2019/09/03/1
https://github.com/systemd/systemd/pull/13457
https://github.com/systemd/systemd/commit/35e528018f315798d3bffcb592b32a0d8f5162bd