GLSA 200608-25: X.org and some X.org libraries: Local privilege escalations

http://security.gentoo.org/

Опасность:	высокая
Заголовок:	X.org and some X.org libraries: Local privilege escalations
Дата:	28.08.2006
Ошибки:	#135974
ID:	200608-25

Сводка

X.org, libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm are vulnerable to local privilege escalations because of unchecked setuid() calls.

Назначение

X.org is an implementation of the X Window System.

Уязвимые пакеты

Пакет	Уязвимый	Нетронутый	Архитектура(ы)
x11-apps/xdm	< 1.0.4-r1	>= 1.0.4-r1	All supported architectures
x11-apps/xinit	< 1.0.2-r6	>= 1.0.2-r6	All supported architectures
x11-apps/xload	< 1.0.1-r1	>= 1.0.1-r1	All supported architectures
x11-apps/xf86dga	< 1.0.1-r1	>= 1.0.1-r1	All supported architectures
x11-base/xorg-x11	< 6.9.0-r2	>= 6.8.2-r8	All supported architectures
x11-base/xorg-server	< 1.1.0-r1	>= 1.0.2-r6	All supported architectures
x11-libs/libx11	< 1.0.1-r1	>= 1.0.1-r1	All supported architectures
x11-libs/xtrans	< 1.0.0-r1	>= 1.0.0-r1	All supported architectures
x11-terms/xterm	< 215	>= 215	All supported architectures
app-emulation/emul-linux-x86-xlibs	< 7.0-r2	>= 7.0-r2	amd64

Описание

Several X.org libraries and X.org itself contain system calls to set*uid() functions, without checking their result.

Воздействие

Local users could deliberately exceed their assigned resource limits and elevate their privileges after an unsuccessful set*uid() system call. This requires resource limits to be enabled on the machine.

Обход

There is no known workaround at this time.

Решение

All X.Org xdm users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-apps/xdm-1.0.4-r1"

All X.Org xinit users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-apps/xinit-1.0.2-r6"

All X.Org xload users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-apps/xload-1.0.1-r1"

All X.Org xf86dga users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-apps/xf86dga-1.0.1-r1"

All X.Org users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.9.0-r2"

All X.Org X servers users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.1.0-r1"

All X.Org X11 library users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/libx11-1.0.1-r1"

All X.Org xtrans library users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/xtrans-1.0.1-r1"

All xterm users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-terms/xterm-215"

All users of the X11R6 libraries for emulation of 32bit x86 on amd64 should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-emulation/emul-linux-x86-xlibs-7.0-r2"

Please note that the fixed packages have been available for most architectures since June 30th but the GLSA release was held up waiting for the remaining architectures.

Ссылки

Наличие

Этот GLSA и любые обновления для нее доступны для просмотра на сайте Gentoo Security: http://security.gentoo.org/glsa/glsa-200608-25.xml

Опасения?

Безопасность является одной из главных задач Gentoo Linux и первостепенное значение обеспечить конфиденциальность и безопасность машин наших пользователей. Любые соображения безопасности должны быть адресованы security@gentoo.org или в качестве альтернативы, вы можете сообщить об ошибке на https://bugs.gentoo.org.