# CVE-2019-3842: systemd: The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init s... CVE-2019-3842 is fixed in 18 products on 1 platform, first by libnss-myhostname 237-3ubuntu10.19, released April 7, 2019. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2019-3842 - Priority: High - CVSS: 7.0 (Moderate) - EPSS: 0.0121 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 7, 2019 ## Description 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libnss-myhostname Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libnss-myhostname 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-myhostname-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libnss-mymachines Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libnss-mymachines 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-mymachines-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libnss-resolve Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libnss-resolve 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libnss-systemd Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libnss-systemd 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libpam-systemd Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libpam-systemd 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpam-systemd-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libsystemd0 Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libsystemd0 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsystemd0-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | libudev1 Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [libudev1 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libudev1-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-container RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-container Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd-container 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-container-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd-container ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-coredump Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd-coredump 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-coredump-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd-devel RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-devel ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-journal-remote RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-journal-remote Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd-journal-remote 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-journal-remote-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd-journal-remote ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-libs RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-libs ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-pam RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-pam ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-sysv Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd-sysv 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-sysv-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd-tests RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-tests Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [systemd-tests 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-systemd-tests-237-3ubuntu10.19.md) | Apr 7, 2019 | | Linux | systemd-tests ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | systemd-udev RHEL 8 | 0:239-45.el8 | [RHSA-2021:1611](https://patchblox.com/security/data/fix/linux/rhsa-2021-1611.md) | May 18, 2021 | | Linux | systemd-udev ol 8 | 0:239-45.0.1.el8 | [ELSA-2021-1611](https://patchblox.com/security/data/fix/linux/elsa-2021-1611.md) | May 25, 2021 | | Linux | udev Ubuntu 18.04.6 LTS (bionic) | 237-3ubuntu10.19 | [udev 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-udev-237-3ubuntu10.19.md) | Apr 7, 2019 | --- Data as of 2026-11-08T00:53:09Z UTC. 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