RedHat: RHSA-2021-3900:01 Moderate: systemd security update
Summary
The systemd packages contain systemd, a system and service manager for
Linux, compatible with the SysV and LSB init scripts. It provides
aggressive parallelism capabilities, uses socket and D-Bus activation for
starting services, offers on-demand starting of daemons, and keeps track of
processes using Linux cgroups. In addition, it supports snapshotting and
restoring of the system state, maintains mount and automount points, and
implements an elaborate transactional dependency-based service control
logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
* systemd: Spoofing of XDG_SEAT allows for actions to be checked against
"allow_active" instead of "allow_any" (CVE-2019-3842)
* systemd: Mishandles numerical usernames beginning with decimal digits or
0x followed by hexadecimal digits (CVE-2020-13776)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2019-3842 https://access.redhat.com/security/cve/CVE-2020-13776 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source:
systemd-239-31.el8_2.7.src.rpm
aarch64:
systemd-239-31.el8_2.7.aarch64.rpm
systemd-container-239-31.el8_2.7.aarch64.rpm
systemd-container-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-debugsource-239-31.el8_2.7.aarch64.rpm
systemd-devel-239-31.el8_2.7.aarch64.rpm
systemd-journal-remote-239-31.el8_2.7.aarch64.rpm
systemd-journal-remote-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-libs-239-31.el8_2.7.aarch64.rpm
systemd-libs-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-pam-239-31.el8_2.7.aarch64.rpm
systemd-pam-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-tests-239-31.el8_2.7.aarch64.rpm
systemd-tests-debuginfo-239-31.el8_2.7.aarch64.rpm
systemd-udev-239-31.el8_2.7.aarch64.rpm
systemd-udev-debuginfo-239-31.el8_2.7.aarch64.rpm
ppc64le:
systemd-239-31.el8_2.7.ppc64le.rpm
systemd-container-239-31.el8_2.7.ppc64le.rpm
systemd-container-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-debugsource-239-31.el8_2.7.ppc64le.rpm
systemd-devel-239-31.el8_2.7.ppc64le.rpm
systemd-journal-remote-239-31.el8_2.7.ppc64le.rpm
systemd-journal-remote-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-libs-239-31.el8_2.7.ppc64le.rpm
systemd-libs-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-pam-239-31.el8_2.7.ppc64le.rpm
systemd-pam-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-tests-239-31.el8_2.7.ppc64le.rpm
systemd-tests-debuginfo-239-31.el8_2.7.ppc64le.rpm
systemd-udev-239-31.el8_2.7.ppc64le.rpm
systemd-udev-debuginfo-239-31.el8_2.7.ppc64le.rpm
s390x:
systemd-239-31.el8_2.7.s390x.rpm
systemd-container-239-31.el8_2.7.s390x.rpm
systemd-container-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-debugsource-239-31.el8_2.7.s390x.rpm
systemd-devel-239-31.el8_2.7.s390x.rpm
systemd-journal-remote-239-31.el8_2.7.s390x.rpm
systemd-journal-remote-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-libs-239-31.el8_2.7.s390x.rpm
systemd-libs-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-pam-239-31.el8_2.7.s390x.rpm
systemd-pam-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-tests-239-31.el8_2.7.s390x.rpm
systemd-tests-debuginfo-239-31.el8_2.7.s390x.rpm
systemd-udev-239-31.el8_2.7.s390x.rpm
systemd-udev-debuginfo-239-31.el8_2.7.s390x.rpm
x86_64:
systemd-239-31.el8_2.7.i686.rpm
systemd-239-31.el8_2.7.x86_64.rpm
systemd-container-239-31.el8_2.7.i686.rpm
systemd-container-239-31.el8_2.7.x86_64.rpm
systemd-container-debuginfo-239-31.el8_2.7.i686.rpm
systemd-container-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-debuginfo-239-31.el8_2.7.i686.rpm
systemd-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-debugsource-239-31.el8_2.7.i686.rpm
systemd-debugsource-239-31.el8_2.7.x86_64.rpm
systemd-devel-239-31.el8_2.7.i686.rpm
systemd-devel-239-31.el8_2.7.x86_64.rpm
systemd-journal-remote-239-31.el8_2.7.x86_64.rpm
systemd-journal-remote-debuginfo-239-31.el8_2.7.i686.rpm
systemd-journal-remote-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-libs-239-31.el8_2.7.i686.rpm
systemd-libs-239-31.el8_2.7.x86_64.rpm
systemd-libs-debuginfo-239-31.el8_2.7.i686.rpm
systemd-libs-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-pam-239-31.el8_2.7.x86_64.rpm
systemd-pam-debuginfo-239-31.el8_2.7.i686.rpm
systemd-pam-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-tests-239-31.el8_2.7.x86_64.rpm
systemd-tests-debuginfo-239-31.el8_2.7.i686.rpm
systemd-tests-debuginfo-239-31.el8_2.7.x86_64.rpm
systemd-udev-239-31.el8_2.7.x86_64.rpm
systemd-udev-debuginfo-239-31.el8_2.7.i686.rpm
systemd-udev-debuginfo-239-31.el8_2.7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for systemd is now available for Red Hat Enterprise Linux 8.2Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1668521 - CVE-2019-3842 systemd: Spoofing of XDG_SEAT allows for actions to be checked against "allow_active" instead of "allow_any"
1845534 - CVE-2020-13776 systemd: Mishandles numerical usernames beginning with decimal digits or 0x followed by hexadecimal digits