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SUSE-SU-2018:0546-1

Опубликовано: 26 фев. 2018
Источник: suse-cvrf

Описание

Security update for systemd

This update for systemd fixes the following issues:

Security issue fixed:

  • CVE-2017-18078: tmpfiles: refuse to chown()/chmod() files which are hardlinked, unless protected_hardlinks sysctl is on. This could be used by local attackers to gain privileges (bsc#1077925)

Non Security issues fixed:

  • core: use id unit when retrieving unit file state (#8038) (bsc#1075801)

  • cryptsetup-generator: run cryptsetup service before swap unit (#5480)

  • udev-rules: all values can contain escaped double quotes now (#6890)

  • strv: fix buffer size calculation in strv_join_quoted()

  • tmpfiles: change ownership of symlinks too

  • stdio-bridge: Correctly propagate error

  • stdio-bridge: remove dead code

  • remove bus-proxyd (bsc#1057974)

  • core/timer: Prevent timer looping when unit cannot start (bsc#1068588)

  • Make systemd-timesyncd use the openSUSE NTP servers by default Previously systemd-timesyncd used the Google Public NTP servers time{1..4}.google.com

  • Don't ship /usr/lib/systemd/system/tmp.mnt at all (bsc#1071224) But we still ship a copy in /var. Users who want to use tmpfs on /tmp are supposed to add a symlink in /etc/ pointing to the copy shipped in /var. To support the update path we automatically create the symlink if tmp.mount in use is located in /usr.

  • Enable systemd-networkd on Leap distros only (bsc#1071311)

Список пакетов

SUSE Linux Enterprise Desktop 12 SP2
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Desktop 12 SP3
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Server 12 SP2
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Server 12 SP3
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
libsystemd0-228-150.32.1
libudev1-228-150.32.1
systemd-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
libsystemd0-228-150.32.1
libsystemd0-32bit-228-150.32.1
libudev1-228-150.32.1
libudev1-32bit-228-150.32.1
systemd-228-150.32.1
systemd-32bit-228-150.32.1
systemd-bash-completion-228-150.32.1
systemd-sysvinit-228-150.32.1
udev-228-150.32.1
SUSE Linux Enterprise Software Development Kit 12 SP2
libudev-devel-228-150.32.1
systemd-devel-228-150.32.1
SUSE Linux Enterprise Software Development Kit 12 SP3
libudev-devel-228-150.32.1
systemd-devel-228-150.32.1

Описание

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.


Затронутые продукты
SUSE Linux Enterprise Desktop 12 SP2:libsystemd0-228-150.32.1
SUSE Linux Enterprise Desktop 12 SP2:libsystemd0-32bit-228-150.32.1
SUSE Linux Enterprise Desktop 12 SP2:libudev1-228-150.32.1
SUSE Linux Enterprise Desktop 12 SP2:libudev1-32bit-228-150.32.1

Ссылки
Уязвимость SUSE-SU-2018:0546-1