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AUSCERT External Security Bulletin Redistribution
ESB-2020.0443
SUSE-SU-2020:0353-1 Security update for systemd
7 February 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: systemd
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-1712
Reference: ESB-2020.0432
ESB-2020.0428
Original Bulletin:
https://www.suse.com/support/update/announcement/2020/suse-su-20200353-1.html
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SUSE Security Update: Security update for systemd
______________________________________________________________________________
Announcement ID: SUSE-SU-2020:0353-1
Rating: important
References: #1106383 #1127557 #1133495 #1139459 #1140631 #1150595
#1151377 #1151506 #1154043 #1154948 #1155574 #1156482
#1159814 #1162108
Cross-References: CVE-2020-1712
Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP5
SUSE Linux Enterprise Server 12-SP5
______________________________________________________________________________
An update that solves one vulnerability and has 13 fixes is now available.
Description:
This update for systemd provides the following fixes:
o CVE-2020-1712 (bsc#bsc#1162108) Fix a heap use-after-free vulnerability,
when asynchronous Polkit queries were performed while handling Dbus
messages. A local unprivileged attacker could have abused this flaw to
crash systemd services or potentially execute code and elevate their
privileges, by sending specially crafted Dbus messages.
o sd-bus: Deal with cookie overruns. (bsc#1150595)
o rules: Add by-id symlinks for persistent memory. (bsc#1140631)
o Drop the old fds used for logging and reopen them in the sub process before
doing any new logging. (bsc#1154948)
o Fix warnings thrown during package installation (bsc#1154043)
o Fix for systemctl hanging by restart. (bsc#1139459)
o man: mention that alias names are only effective after 'systemctl enable'.
(bsc#1151377)
o ask-password: improve log message when inotify limit is reached. (bsc#
1155574)
o udevd: wait for workers to finish when exiting. (bsc#1106383)
o core: fragments of masked units ought not be considered for
NeedDaemonReload. (bsc#1156482)
o udev: fix 'NULL' deref when executing rules. (bsc#1151506)
o Introduce function for reading virtual files in 'sysfs' and 'procfs'. (bsc#
1133495, bsc#1159814)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Software Development Kit 12-SP5:
zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-353=1
o SUSE Linux Enterprise Server 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-353=1
Package List:
o SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 ppc64le
s390x x86_64):
libudev-devel-228-157.9.1
systemd-debuginfo-228-157.9.1
systemd-debugsource-228-157.9.1
systemd-devel-228-157.9.1
o SUSE Linux Enterprise Server 12-SP5 (aarch64 ppc64le s390x x86_64):
libsystemd0-228-157.9.1
libsystemd0-debuginfo-228-157.9.1
libudev1-228-157.9.1
libudev1-debuginfo-228-157.9.1
systemd-228-157.9.1
systemd-debuginfo-228-157.9.1
systemd-debugsource-228-157.9.1
systemd-sysvinit-228-157.9.1
udev-228-157.9.1
udev-debuginfo-228-157.9.1
o SUSE Linux Enterprise Server 12-SP5 (s390x x86_64):
libsystemd0-32bit-228-157.9.1
libsystemd0-debuginfo-32bit-228-157.9.1
libudev1-32bit-228-157.9.1
libudev1-debuginfo-32bit-228-157.9.1
systemd-32bit-228-157.9.1
systemd-debuginfo-32bit-228-157.9.1
o SUSE Linux Enterprise Server 12-SP5 (noarch):
systemd-bash-completion-228-157.9.1
References:
o https://www.suse.com/security/cve/CVE-2020-1712.html
o https://bugzilla.suse.com/1106383
o https://bugzilla.suse.com/1127557
o https://bugzilla.suse.com/1133495
o https://bugzilla.suse.com/1139459
o https://bugzilla.suse.com/1140631
o https://bugzilla.suse.com/1150595
o https://bugzilla.suse.com/1151377
o https://bugzilla.suse.com/1151506
o https://bugzilla.suse.com/1154043
o https://bugzilla.suse.com/1154948
o https://bugzilla.suse.com/1155574
o https://bugzilla.suse.com/1156482
o https://bugzilla.suse.com/1159814
o https://bugzilla.suse.com/1162108
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