Описание
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
Отчет
This issue does not affect the Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5. This was addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0542.html and https://rhn.redhat.com/errata/RHSA-2011-0500.html.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Affected | ||
| Red Hat Enterprise Linux 5 | kernel | Affected | ||
| MRG for RHEL-5 | kernel-rt | Fixed | RHSA-2011:0500 | 10.05.2011 |
| Red Hat Enterprise Linux 6 | kernel | Fixed | RHSA-2011:0542 | 19.05.2011 |
| Red Hat Enterprise Linux 6.0 EUS - Server Only | kernel | Fixed | RHSA-2011:0883 | 21.06.2011 |
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Дополнительная информация
Статус:
4.9 Medium
CVSS2
Связанные уязвимости
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file des ...
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
ELSA-2011-2016: Unbreakable Enterprise kernel security fix update (IMPORTANT)
4.9 Medium
CVSS2