Description
D-BUS (dbus) before 0.22 does not properly restrict access to a socket, if the socket address is known, which allows local users to listen or send arbitrary messages on another user's per-user session bus via that socket.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dbus | 0.22 | — |
| Debian 13 | dbus | 0.22 | — |
| Debian 12 | dbus | 0.22 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | dbus +4 | 0.22-12.EL.2 | RHSA-2005:102 |
Advisories 1
- RHSA-2005:102 Red Hat Security Advisory: dbus security update. Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 15833 third-party-advisory
- 15844 third-party-advisory
- 12435 vdb-entry
- MDKSA-2005:105 vendor-advisory
- oval:org.mitre.oval:def:10973 vdb-entry signature
- 1013075 vdb-entry
- 15638 third-party-advisory
- RHSA-2005:102 vendor-advisory
- ESB-2005.0435 third-party-advisory
- USN-144-1 vendor-advisory
- 14119 third-party-advisory