CVE-2020-12049
Description
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-12049
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-12049.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202006-9
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.12.18-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 1.12.18-1 |
| debian | bullseye | fixed | 1.12.18-1 |
| debian | forky | fixed | 1.12.18-1 |
| debian | sid | fixed | 1.12.18-1 |
| debian | trixie | fixed | 1.12.18-1 |
References
Verify integrity in audit chain (admin only). AS-IS.