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SUSE: 2020:0335-1 Important: systemd Heap Use-After-Free Denial of Service

suse
Calendar Grey February 6, 2020
Dist Suse Esm H88
Red Hat's recent patch for NetworkManager resolves significant vulnerabilities and enhances performance for improved functionality.
An update that solves two vulnerabilities and has 12 fixes is now available

Summary

This update for systemd fixes the following issues: - 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. - Use suse.pool.ntp.org server pool on SLE distros (jsc#SLE-7683) - libblkid: open device in nonblock mode. (bsc#1084671) - udev/cdrom_id: Do not open CD-rom in exclusive mode. (bsc#1154256) - bus_open leak sd_event_source when udevadm trigger。 (bsc#1161436 CVE-2019-20386) - fileio: introduce read_full_virtual_file() for reading virtual files in sysfs, procfs (bsc#1133495 bsc#1159814)

Topics%20covered

Topics Covered

security advisory important local attack Denial of Service SUSE systemd heap use-after-free

References

#1084671 #1092920 #1106383 #1133495 #1151377

#1154256 #1155207 #1155574 #1156213 #1156482

#1158485 #1159814 #1161436 #1162108

Cross- CVE-2019-20386 CVE-2020-1712

Affected Products:

SUSE Linux Enterprise Server for SAP 15

SUSE Linux Enterprise Server 15-LTSS

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15

SUSE Linux Enterprise Module for Basesystem 15-SP1

SUSE Linux Enterprise Module for Basesystem 15

SUSE Linux Enterprise High Performance Computing 15-LTSS

SUSE Linux Enterprise High Performance Computing 15-ESPOS

https://www.suse.com/security/cve/CVE-2019-20386.html

https://www.suse.com/security/cve/CVE-2020-1712.html

https://bugzilla.suse.com/1084671

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2020:0335-1
Rating: important

Topics%20covered

Topics Covered

security advisory important local attack Denial of Service SUSE systemd heap use-after-free

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