Описание
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.
An uncontrolled resource consumption vulnerability was discovered in D-Bus. The DBusServer leaks file descriptors when a message exceeds the per-message file descriptor limit. This flaw allows a local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket, to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients. As a result, the system may become unusable for other users, and some services may stop working. The highest threat from this vulnerability is to system availability.
Отчет
This issue did not affect the versions of dbus as shipped with Red Hat Enterprise Linux 5, and 6 as they did not include the vulnerable code.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | dbus | Not affected | ||
| Red Hat Enterprise Linux 6 | dbus | Not affected | ||
| Red Hat Enterprise Linux 7 | dbus | Fixed | RHSA-2020:2894 | 13.07.2020 |
| Red Hat Enterprise Linux 8 | dbus | Fixed | RHSA-2020:3014 | 21.07.2020 |
| Red Hat Enterprise Linux 8 | dbus | Fixed | RHSA-2020:3014 | 21.07.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | dbus | Fixed | RHSA-2020:3044 | 21.07.2020 |
| Red Hat Enterprise Linux 8.1 Extended Update Support | dbus | Fixed | RHSA-2020:3298 | 04.08.2020 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
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.
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.
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServe ...
EPSS
6.5 Medium
CVSS3