Описание
A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors
A use-after-free flaw was found in D-Bus when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors.
Отчет
Regarding the concern with D-Bus, users with the same UID are treated as the same user. As in Linux, multiple assumptions are made based on the fact that a user is identified by its UID. It is not advisable to have multiple users with different privileges and the same UID on systems where D-Bus is used. For these reasons, this vulnerability has been rated as having Low Impact.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | dbus | Out of support scope | ||
| Red Hat Enterprise Linux 6 | dbus | Out of support scope | ||
| Red Hat Enterprise Linux 7 | dbus | Out of support scope | ||
| Red Hat Enterprise Linux 8 | dbus | Will not fix | ||
| Red Hat Enterprise Linux 9 | dbus | Not affected |
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Дополнительная информация
Статус:
7 High
CVSS3
Связанные уязвимости
A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors
A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors
A use-after-free flaw was found in D-Bus Development branch <= 1.13.16 ...
7 High
CVSS3