CVE-2021-33910

systemd: The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init s...

CVE-2021-33910 is fixed in 19 products on 1 platform, first by libnss-myhostname 237-3ubuntu10.49, released July 20, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0879
95th percentile

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: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910) 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.

Where it's fixed

ProductFixed inFixReleased
Linux
libnss-myhostname · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libnss-myhostname 237-3ubuntu10.49 Jul 20, 2021
libnss-myhostname · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libnss-myhostname 245.4-4ubuntu3.10 Jul 20, 2021
libnss-mymachines · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libnss-mymachines 237-3ubuntu10.49 Jul 20, 2021
libnss-mymachines · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libnss-mymachines 245.4-4ubuntu3.10 Jul 20, 2021
libnss-resolve · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libnss-resolve 237-3ubuntu10.49 Jul 20, 2021
libnss-resolve · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libnss-resolve 245.4-4ubuntu3.10 Jul 20, 2021
libnss-systemd · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libnss-systemd 237-3ubuntu10.49 Jul 20, 2021
libnss-systemd · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libnss-systemd 245.4-4ubuntu3.10 Jul 20, 2021
libpam-systemd · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libpam-systemd 237-3ubuntu10.49 Jul 20, 2021
libpam-systemd · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libpam-systemd 245.4-4ubuntu3.10 Jul 20, 2021
libsystemd0 · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libsystemd0 237-3ubuntu10.49 Jul 20, 2021
libsystemd0 · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libsystemd0 245.4-4ubuntu3.10 Jul 20, 2021
libudev1 · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 libudev1 237-3ubuntu10.49 Jul 20, 2021
libudev1 · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 libudev1 245.4-4ubuntu3.10 Jul 20, 2021
systemd · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd 237-3ubuntu10.49 Jul 20, 2021
systemd · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd 245.4-4ubuntu3.10 Jul 20, 2021
systemd · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-container · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-container · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd-container 237-3ubuntu10.49 Jul 20, 2021
systemd-container · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-container 245.4-4ubuntu3.10 Jul 20, 2021
systemd-container · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-coredump · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd-coredump 237-3ubuntu10.49 Jul 20, 2021
systemd-coredump · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-coredump 245.4-4ubuntu3.10 Jul 20, 2021
systemd-devel · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-devel · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-journal-remote · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-journal-remote · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd-journal-remote 237-3ubuntu10.49 Jul 20, 2021
systemd-journal-remote · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-journal-remote 245.4-4ubuntu3.10 Jul 20, 2021
systemd-journal-remote · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-libs · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-libs · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-pam · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-pam · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-sysv · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd-sysv 237-3ubuntu10.49 Jul 20, 2021
systemd-sysv · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-sysv 245.4-4ubuntu3.10 Jul 20, 2021
systemd-tests · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-tests · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 systemd-tests 237-3ubuntu10.49 Jul 20, 2021
systemd-tests · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-tests 245.4-4ubuntu3.10 Jul 20, 2021
systemd-tests · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
systemd-timesyncd · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 systemd-timesyncd 245.4-4ubuntu3.10 Jul 20, 2021
systemd-udev · RHEL 8 0:239-45.el8_4.2 RHSA-2021:2717 Jul 21, 2021
systemd-udev · ol 8 0:239-45.0.2.el8_4.2 ELSA-2021-2717 Jul 21, 2021
udev · Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 udev 237-3ubuntu10.49 Jul 20, 2021
udev · Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 udev 245.4-4ubuntu3.10 Jul 20, 2021

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