D-Bus vulnerability CVE-2020-12049

2021-04-12T18:20:00
ID F5:K16729408
Type f5
Reporter f5
Modified 2021-08-04T22:44:00

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. (CVE-2020-12049)

Impact

A local attacker may cause a denial-of-service (DoS) attack or threaten the availability of the system.