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
SUSE Linux Enterprise Desktop 12 SP3
SUSE Linux Enterprise Server 12 SP2
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12 SP3
SUSE Linux Enterprise Software Development Kit 12 SP2
SUSE Linux Enterprise Software Development Kit 12 SP3
Ссылки
- Link for SUSE-SU-2018:0546-1
- E-Mail link for SUSE-SU-2018:0546-1
- SUSE Security Ratings
- SUSE Bug 1057974
- SUSE Bug 1068588
- SUSE Bug 1071224
- SUSE Bug 1071311
- SUSE Bug 1075801
- SUSE Bug 1077925
- SUSE CVE CVE-2017-18078 page
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
Ссылки
- CVE-2017-18078
- SUSE Bug 1077925