Upstream information

CVE-2019-3843 at MITRE

Description

It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.8 4.5
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Access Vector Local Local
Access Complexity Low High
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact High Low
Availability Impact High Low
CVSSv3 Version 3.0 3.0
SUSE Bugzilla entry: 1133506 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15
  • libsystemd0 >= 234-24.30.1
  • libsystemd0-32bit >= 234-24.30.1
  • libudev-devel >= 234-24.30.1
  • libudev1 >= 234-24.30.1
  • libudev1-32bit >= 234-24.30.1
  • systemd >= 234-24.30.1
  • systemd-32bit >= 234-24.30.1
  • systemd-bash-completion >= 234-24.30.1
  • systemd-container >= 234-24.30.1
  • systemd-coredump >= 234-24.30.1
  • systemd-devel >= 234-24.30.1
  • systemd-sysvinit >= 234-24.30.1
  • udev >= 234-24.30.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2019-1364
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • libsystemd0 >= 234-24.30.1
  • libsystemd0-32bit >= 234-24.30.1
  • libudev-devel >= 234-24.30.1
  • libudev1 >= 234-24.30.1
  • libudev1-32bit >= 234-24.30.1
  • systemd >= 234-24.30.1
  • systemd-32bit >= 234-24.30.1
  • systemd-bash-completion >= 234-24.30.1
  • systemd-container >= 234-24.30.1
  • systemd-coredump >= 234-24.30.1
  • systemd-devel >= 234-24.30.1
  • systemd-sysvinit >= 234-24.30.1
  • udev >= 234-24.30.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2019-1364
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • libsystemd0-mini >= 234-24.30.1
  • libudev-mini-devel >= 234-24.30.1
  • libudev-mini1 >= 234-24.30.1
  • nss-myhostname >= 234-24.30.1
  • nss-mymachines >= 234-24.30.1
  • nss-systemd >= 234-24.30.1
  • systemd >= 234-24.30.1
  • systemd-logger >= 234-24.30.1
  • systemd-mini >= 234-24.30.1
  • systemd-mini-bash-completion >= 234-24.30.1
  • systemd-mini-container-mini >= 234-24.30.1
  • systemd-mini-coredump-mini >= 234-24.30.1
  • systemd-mini-devel >= 234-24.30.1
  • systemd-mini-sysvinit >= 234-24.30.1
  • udev-mini >= 234-24.30.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-2019-1364
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • libsystemd0-mini >= 234-24.30.1
  • libudev-devel-32bit >= 234-24.30.1
  • libudev-mini-devel >= 234-24.30.1
  • libudev-mini1 >= 234-24.30.1
  • nss-myhostname >= 234-24.30.1
  • nss-myhostname-32bit >= 234-24.30.1
  • nss-mymachines >= 234-24.30.1
  • nss-mymachines-32bit >= 234-24.30.1
  • nss-systemd >= 234-24.30.1
  • systemd >= 234-24.30.1
  • systemd-logger >= 234-24.30.1
  • systemd-mini >= 234-24.30.1
  • systemd-mini-bash-completion >= 234-24.30.1
  • systemd-mini-container-mini >= 234-24.30.1
  • systemd-mini-coredump-mini >= 234-24.30.1
  • systemd-mini-devel >= 234-24.30.1
  • systemd-mini-sysvinit >= 234-24.30.1
  • udev-mini >= 234-24.30.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-1364


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
CaaS Platform 1.0 systemd Not affected
CaaS Platform 2.0 systemd Not affected
CaaS Platform 3.0 systemd Not affected
OpenStack Cloud Magnum Orchestration 7.0 systemd Not affected
SUSE Linux Enterprise Desktop 12 SP3 systemd Not affected
SUSE Linux Enterprise Desktop 12 SP4 systemd Not affected
SUSE Linux Enterprise High Performance Computing 12 systemd Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA systemd Released
SUSE Linux Enterprise Module for Basesystem 15 SP1 systemd Released
SUSE Linux Enterprise SDK 12 SP3 systemd Not affected
SUSE Linux Enterprise SDK 12 SP4 systemd Not affected
SUSE Linux Enterprise Server 12 GA LTSS systemd Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS systemd Not affected
SUSE Linux Enterprise Server 12 SP3 systemd Not affected
SUSE Linux Enterprise Server 12 SP4 systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 systemd Not affected