Описание
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
Отчет
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not include support for EXT4 filesystem. It did not affect the Linux kernel as shipped with Red Hat Enterprise MRG as it has backported the upstream commit 667eff35 that addressed this issue. This has been addressed in Red Hat Enterprise Linux 5 and 6 via https://rhn.redhat.com/errata/RHSA-2012-0107.html and https://rhn.redhat.com/errata/RHSA-2011-1530.html.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Not affected | ||
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | ||
| Red Hat Enterprise Linux 5 | kernel | Fixed | RHSA-2012:0107 | 09.02.2012 |
| Red Hat Enterprise Linux 5.6 EUS - Server Only | kernel | Fixed | RHSA-2012:0517 | 24.04.2012 |
| Red Hat Enterprise Linux 6 | kernel | Fixed | RHSA-2011:1530 | 05.12.2011 |
| Red Hat Enterprise Linux 6.1 EUS - Server Only | kernel | Fixed | RHSA-2012:0116 | 15.02.2012 |
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Дополнительная информация
Статус:
4 Medium
CVSS2
Связанные уязвимости
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modif ...
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
ELSA-2011-1530: Oracle Linux 6 kernel security, bug fix and enhancement update (MODERATE)
4 Medium
CVSS2