CVE-2019-3844

Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 26 Apr 2019, 20:26
Last modified:09 Jun 2025, 15:49

Vulnerability Summary

Overall Risk (default)
medium
41/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.15% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

26 Apr 2019, 20:26
Published
Vulnerability first disclosed
09 Jun 2025, 15:49
Last Modified
Vulnerability information updated

Description

It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v3.0•MEDIUM•Score: 4.5CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.15%• Percentile: 35%

Techniques & Countermeasures

  • CWE-268•Privilege Chaining

    Two distinct privileges, roles, capabilities, or rights can be combined in a way that allows an entity to perform unsafe actions that would not be allowed without that combination.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 19.10

  • [freedesktop.org]•systemd

    242

  • netapp•cn1610_firmware

    na

  • netapp•hci_management_node

    na

  • netapp•snapprotect

    na

  • netapp•solidfire

    na

  • systemd_project•systemd

    < 242

References (6)