Amazon Linux 2 Security Advisory: ALAS-2020-1388
Advisory Release Date: 2020-02-03 21:13 Pacific
Advisory Updated Date: 2020-02-08 00:05 Pacific
Severity:
Medium
Issue Overview:
A heap use-after-free vulnerability was found in systemd, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages. (CVE-2020-1712)
Affected Packages:
systemd
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update systemd to update your system.
New Packages:
aarch64:
systemd-219-57.amzn2.0.12.aarch64
systemd-libs-219-57.amzn2.0.12.aarch64
systemd-devel-219-57.amzn2.0.12.aarch64
systemd-sysv-219-57.amzn2.0.12.aarch64
systemd-python-219-57.amzn2.0.12.aarch64
libgudev1-219-57.amzn2.0.12.aarch64
libgudev1-devel-219-57.amzn2.0.12.aarch64
systemd-journal-gateway-219-57.amzn2.0.12.aarch64
systemd-networkd-219-57.amzn2.0.12.aarch64
systemd-resolved-219-57.amzn2.0.12.aarch64
systemd-debuginfo-219-57.amzn2.0.12.aarch64
i686:
systemd-219-57.amzn2.0.12.i686
systemd-libs-219-57.amzn2.0.12.i686
systemd-devel-219-57.amzn2.0.12.i686
systemd-sysv-219-57.amzn2.0.12.i686
systemd-python-219-57.amzn2.0.12.i686
libgudev1-219-57.amzn2.0.12.i686
libgudev1-devel-219-57.amzn2.0.12.i686
systemd-journal-gateway-219-57.amzn2.0.12.i686
systemd-networkd-219-57.amzn2.0.12.i686
systemd-resolved-219-57.amzn2.0.12.i686
systemd-debuginfo-219-57.amzn2.0.12.i686
src:
systemd-219-57.amzn2.0.12.src
x86_64:
systemd-219-57.amzn2.0.12.x86_64
systemd-libs-219-57.amzn2.0.12.x86_64
systemd-devel-219-57.amzn2.0.12.x86_64
systemd-sysv-219-57.amzn2.0.12.x86_64
systemd-python-219-57.amzn2.0.12.x86_64
libgudev1-219-57.amzn2.0.12.x86_64
libgudev1-devel-219-57.amzn2.0.12.x86_64
systemd-journal-gateway-219-57.amzn2.0.12.x86_64
systemd-networkd-219-57.amzn2.0.12.x86_64
systemd-resolved-219-57.amzn2.0.12.x86_64
systemd-debuginfo-219-57.amzn2.0.12.x86_64